31013300120 has 64 divisors (see below), whose sum is σ = 76149309600. Its totient is φ = 11273748480.

The previous prime is 31013300083. The next prime is 31013300161. The reversal of 31013300120 is 2100331013.

It is a junction number, because it is equal to n+sod(n) for n = 31013300095 and 31013300104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1510886 + ... + 1531274.

Almost surely, 2^31013300120 is an apocalyptic number.

It is an amenable number.

31013300120 is an abundant number, since it is smaller than the sum of its proper divisors (45136009480).

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

31013300120 is a wasteful number, since it uses less digits than its factorization.

31013300120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23868 (or 23864 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 31013300120 its reverse (2100331013), we get a palindrome (33113631133).

It can be divided in two parts, 31013 and 300120, that added together give a palindrome (331133).

The spelling of 31013300120 in words is "thirty-one billion, thirteen million, three hundred thousand, one hundred twenty".