231304968929 has 2 divisors, whose sum is σ = 231304968930. Its totient is φ = 231304968928.

The previous prime is 231304968911. The next prime is 231304968971. The reversal of 231304968929 is 929869403132.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163982882704 + 67322086225 = 404948^2 + 259465^2 .

It is a cyclic number.

It is not a de Polignac number, because 231304968929 - 2⁸ = 231304968673 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (231304968329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115652484464 + 115652484465.

It is an arithmetic number, because the mean of its divisors is an integer number (115652484465).

Almost surely, 2^231304968929 is an apocalyptic number.

It is an amenable number.

231304968929 is a deficient number, since it is larger than the sum of its proper divisors (1).

231304968929 is an equidigital number, since it uses as much as digits as its factorization.

231304968929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5038848, while the sum is 56.

The spelling of 231304968929 in words is "two hundred thirty-one billion, three hundred four million, nine hundred sixty-eight thousand, nine hundred twenty-nine".