231311022329 has 2 divisors, whose sum is σ = 231311022330. Its totient is φ = 231311022328.

The previous prime is 231311022323. The next prime is 231311022337. The reversal of 231311022329 is 923220113132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186006751225 + 45304271104 = 431285^2 + 212848^2 .

It is a cyclic number.

It is not a de Polignac number, because 231311022329 - 2⁸ = 231311022073 is a prime.

It is not a weakly prime, because it can be changed into another prime (231311022323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115655511164 + 115655511165.

It is an arithmetic number, because the mean of its divisors is an integer number (115655511165).

Almost surely, 2^231311022329 is an apocalyptic number.

It is an amenable number.

231311022329 is a deficient number, since it is larger than the sum of its proper divisors (1).

231311022329 is an equidigital number, since it uses as much as digits as its factorization.

231311022329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 231311022329 in words is "two hundred thirty-one billion, three hundred eleven million, twenty-two thousand, three hundred twenty-nine".