31023321020232 has 32 divisors (see below), whose sum is σ = 77566160330880. Its totient is φ = 10340059302720.

The previous prime is 31023321020129. The next prime is 31023321020243. The reversal of 31023321020232 is 23202012332013.

It is a super-2 number, since 2×31023321020232² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65239663 + ... + 65713470.

It is an arithmetic number, because the mean of its divisors is an integer number (2423942510340).

Almost surely, 2^{31023321020232} is an apocalyptic number.

It is an amenable number.

31023321020232 is an abundant number, since it is smaller than the sum of its proper divisors (46542839310648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31023321020232 is a wasteful number, since it uses less digits than its factorization.

31023321020232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130963013 (or 130963009 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31023321020232 its reverse (23202012332013), we get a palindrome (54225333352245).

The spelling of 31023321020232 in words is "thirty-one trillion, twenty-three billion, three hundred twenty-one million, twenty thousand, two hundred thirty-two".