31310103311120 has 40 divisors (see below), whose sum is σ = 72796490327616. Its totient is φ = 12523955280768.

The previous prime is 31310103311093. The next prime is 31310103311159. The reversal of 31310103311120 is 2111330101313.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 31310103311092 and 31310103311101.

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, 11086619 + ... + 13621061.

Almost surely, 2^{31310103311120} is an apocalyptic number.

It is an amenable number.

31310103311120 is an abundant number, since it is smaller than the sum of its proper divisors (41486387016496).

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

31310103311120 is a wasteful number, since it uses less digits than its factorization.

31310103311120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688879 (or 2688873 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 31310103311120 its reverse (2111330101313), we get a palindrome (33421433412433).

The spelling of 31310103311120 in words is "thirty-one trillion, three hundred ten billion, one hundred three million, three hundred eleven thousand, one hundred twenty".