31312122486923 has 2 divisors, whose sum is σ = 31312122486924. Its totient is φ = 31312122486922.

The previous prime is 31312122486839. The next prime is 31312122486929. The reversal of 31312122486923 is 32968422121313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31312122486923 - 2²⁶ = 31312055378059 is a prime.

It is not a weakly prime, because it can be changed into another prime (31312122486929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656061243461 + 15656061243462.

It is an arithmetic number, because the mean of its divisors is an integer number (15656061243462).

Almost surely, 2^{31312122486923} is an apocalyptic number.

31312122486923 is a deficient number, since it is larger than the sum of its proper divisors (1).

31312122486923 is an equidigital number, since it uses as much as digits as its factorization.

31312122486923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 47.

The spelling of 31312122486923 in words is "thirty-one trillion, three hundred twelve billion, one hundred twenty-two million, four hundred eighty-six thousand, nine hundred twenty-three".