31310231023 has 2 divisors, whose sum is σ = 31310231024. Its totient is φ = 31310231022.

The previous prime is 31310231003. The next prime is 31310231047. The reversal of 31310231023 is 32013201313.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31310231023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31310231003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15655115511 + 15655115512.

It is an arithmetic number, because the mean of its divisors is an integer number (15655115512).

Almost surely, 2^31310231023 is an apocalyptic number.

31310231023 is a deficient number, since it is larger than the sum of its proper divisors (1).

31310231023 is an equidigital number, since it uses as much as digits as its factorization.

31310231023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 31310231023 its reverse (32013201313), we get a palindrome (63323432336).

The spelling of 31310231023 in words is "thirty-one billion, three hundred ten million, two hundred thirty-one thousand, twenty-three".