31312113023057 has 2 divisors, whose sum is σ = 31312113023058. Its totient is φ = 31312113023056.

The previous prime is 31312113023027. The next prime is 31312113023071. The reversal of 31312113023057 is 75032031121313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21024755996176 + 10287357026881 = 4585276^2 + 3207391^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31312113023057 is a prime.

It is not a weakly prime, because it can be changed into another prime (31312113023027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656056511528 + 15656056511529.

It is an arithmetic number, because the mean of its divisors is an integer number (15656056511529).

Almost surely, 2^{31312113023057} is an apocalyptic number.

It is an amenable number.

31312113023057 is a deficient number, since it is larger than the sum of its proper divisors (1).

31312113023057 is an equidigital number, since it uses as much as digits as its factorization.

31312113023057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The spelling of 31312113023057 in words is "thirty-one trillion, three hundred twelve billion, one hundred thirteen million, twenty-three thousand, fifty-seven".