31322313121023 has 32 divisors (see below), whose sum is σ = 49133538316800. Its totient is φ = 19653016825728.

The previous prime is 31322313121013. The next prime is 31322313121061. The reversal of 31322313121023 is 32012131322313.

31322313121023 is a `hidden beast` number, since 3 + 1 + 322 + 3 + 1 + 312 + 1 + 0 + 23 = 666.

It is not a de Polignac number, because 31322313121023 - 2⁵ = 31322313120991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31322313121013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54407640 + ... + 54980322.

It is an arithmetic number, because the mean of its divisors is an integer number (1535423072400).

Almost surely, 2^{31322313121023} is an apocalyptic number.

31322313121023 is a deficient number, since it is larger than the sum of its proper divisors (17811225195777).

31322313121023 is a wasteful number, since it uses less digits than its factorization.

31322313121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691868 (or 691862 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 31322313121023 its reverse (32012131322313), we get a palindrome (63334444443336).

The spelling of 31322313121023 in words is "thirty-one trillion, three hundred twenty-two billion, three hundred thirteen million, one hundred twenty-one thousand, twenty-three".