31310020022923 has 2 divisors, whose sum is σ = 31310020022924. Its totient is φ = 31310020022922.

The previous prime is 31310020022903. The next prime is 31310020023001. The reversal of 31310020022923 is 32922002001313.

It is a weak prime.

It is an emirp because it is prime and its reverse (32922002001313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31310020022923 - 2⁵ = 31310020022891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31310020022891 and 31310020022900.

It is not a weakly prime, because it can be changed into another prime (31310020022903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15655010011461 + 15655010011462.

It is an arithmetic number, because the mean of its divisors is an integer number (15655010011462).

Almost surely, 2^{31310020022923} is an apocalyptic number.

31310020022923 is a deficient number, since it is larger than the sum of its proper divisors (1).

31310020022923 is an equidigital number, since it uses as much as digits as its factorization.

31310020022923 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 28.

The spelling of 31310020022923 in words is "thirty-one trillion, three hundred ten billion, twenty million, twenty-two thousand, nine hundred twenty-three".