231313310369 has 2 divisors, whose sum is σ = 231313310370. Its totient is φ = 231313310368.

The previous prime is 231313310329. The next prime is 231313310377. The reversal of 231313310369 is 963013313132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207469318144 + 23843992225 = 455488^2 + 154415^2 .

It is a cyclic number.

It is not a de Polignac number, because 231313310369 - 2²⁰ = 231312261793 is a prime.

It is a super-2 number, since 2×231313310369² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (231313310329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115656655184 + 115656655185.

It is an arithmetic number, because the mean of its divisors is an integer number (115656655185).

Almost surely, 2^231313310369 is an apocalyptic number.

It is an amenable number.

231313310369 is a deficient number, since it is larger than the sum of its proper divisors (1).

231313310369 is an equidigital number, since it uses as much as digits as its factorization.

231313310369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 35.

The spelling of 231313310369 in words is "two hundred thirty-one billion, three hundred thirteen million, three hundred ten thousand, three hundred sixty-nine".