31013230332020 has 24 divisors (see below), whose sum is σ = 65517770433024. Its totient is φ = 12331008945056.

The previous prime is 31013230331929. The next prime is 31013230332089. The reversal of 31013230332020 is 2023303231013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4642695812 + ... + 4642702491.

It is an arithmetic number, because the mean of its divisors is an integer number (2729907101376).

Almost surely, 2^{31013230332020} is an apocalyptic number.

It is an amenable number.

31013230332020 is an abundant number, since it is smaller than the sum of its proper divisors (34504540101004).

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

31013230332020 is a wasteful number, since it uses less digits than its factorization.

31013230332020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9285398479 (or 9285398477 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 31013230332020 its reverse (2023303231013), we get a palindrome (33036533563033).

The spelling of 31013230332020 in words is "thirty-one trillion, thirteen billion, two hundred thirty million, three hundred thirty-two thousand, twenty".