312232103257 has 2 divisors, whose sum is σ = 312232103258. Its totient is φ = 312232103256.

The previous prime is 312232103237. The next prime is 312232103269. The reversal of 312232103257 is 752301232213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195798285081 + 116433818176 = 442491^2 + 341224^2 .

It is a cyclic number.

It is not a de Polignac number, because 312232103257 - 2⁷ = 312232103129 is a prime.

It is not a weakly prime, because it can be changed into another prime (312232103237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156116051628 + 156116051629.

It is an arithmetic number, because the mean of its divisors is an integer number (156116051629).

Almost surely, 2^312232103257 is an apocalyptic number.

It is an amenable number.

312232103257 is a deficient number, since it is larger than the sum of its proper divisors (1).

312232103257 is an equidigital number, since it uses as much as digits as its factorization.

312232103257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 31.

The spelling of 312232103257 in words is "three hundred twelve billion, two hundred thirty-two million, one hundred three thousand, two hundred fifty-seven".