100313231 has 2 divisors, whose sum is σ = 100313232. Its totient is φ = 100313230.

The previous prime is 100313203. The next prime is 100313237. The reversal of 100313231 is 132313001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100313231 - 2¹⁸ = 100051087 is a prime.

It is a super-2 number, since 2×100313231² = 20125488627318722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100313237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50156615 + 50156616.

It is an arithmetic number, because the mean of its divisors is an integer number (50156616).

Almost surely, 2^100313231 is an apocalyptic number.

100313231 is a deficient number, since it is larger than the sum of its proper divisors (1).

100313231 is an equidigital number, since it uses as much as digits as its factorization.

100313231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 100313231 is about 10015.6493049627. The cubic root of 100313231 is about 464.6430080737.

Adding to 100313231 its reverse (132313001), we get a palindrome (232626232).

The spelling of 100313231 in words is "one hundred million, three hundred thirteen thousand, two hundred thirty-one".