1231
1,231 is a prime number. Like all primes greater than two, it is odd and has no factors apart from itself and one.
1231 is a prime number. Like all primes (except two), it is an odd number.
Prime factorization of 1231:
1231^{}
See below for interesting mathematical facts about the number 1231 from the Numbermatics database.
Names of 1231
 Cardinal: 1231 can be written as One thousand, two hundred thirtyone.
Scientific notation
 Scientific notation: 1.231 × 10^{3}
Factors of 1231
Divisors of 1231
Bases of 1231
 Binary: 10011001111_{2}
 Hexadecimal: 0x4CF
 Base36: Y7
Squares and roots of 1231
 1231 squared (1231^{2}) is 1515361
 1231 cubed (1231^{3}) is 1865409391

The
square root of 1231 is 35.0856095857 
The
cube root of 1231 is 10.7173155453
Scales and comparisons
How big is 1231? 1,231 seconds is equal to 20 minutes, 31 seconds.

To count from 1 to 1,231 would take you about twenty minutes.
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomlychosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
 A cube with a volume of 1231 cubic inches would be around 0.9 feet tall.
Recreational maths with 1231
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The information we have on file for 1231 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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