31103013033320 has 128 divisors (see below), whose sum is σ = 74169025587360. Its totient is φ = 11698207948800.

The previous prime is 31103013033283. The next prime is 31103013033329. The reversal of 31103013033320 is 2333031030113.

It can be written as a sum of positive squares in 16 ways, for example, as 7417484932036 + 23685528101284 = 2723506^2 + 4866778^2 .

It is not an unprimeable number, because it can be changed into a prime (31103013033329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5678838422 + ... + 5678843898.

Almost surely, 2^{31103013033320} is an apocalyptic number.

It is an amenable number.

31103013033320 is an abundant number, since it is smaller than the sum of its proper divisors (43066012554040).

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

31103013033320 is a wasteful number, since it uses less digits than its factorization.

31103013033320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11943 (or 11939 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 31103013033320 its reverse (2333031030113), we get a palindrome (33436044063433).

The spelling of 31103013033320 in words is "thirty-one trillion, one hundred three billion, thirteen million, thirty-three thousand, three hundred twenty".