31110031113203 has 12 divisors (see below), whose sum is σ = 36527436880632. Its totient is φ = 26416528417440.

The previous prime is 31110031113173. The next prime is 31110031113257. The reversal of 31110031113203 is 30231113001113.

It is not a de Polignac number, because 31110031113203 - 2¹² = 31110031109107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31110031113103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2966810618 + ... + 2966821103.

It is an arithmetic number, because the mean of its divisors is an integer number (3043953073386).

Almost surely, 2^{31110031113203} is an apocalyptic number.

31110031113203 is a deficient number, since it is larger than the sum of its proper divisors (5417405767429).

31110031113203 is a wasteful number, since it uses less digits than its factorization.

31110031113203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5933631842 (or 5933631835 counting only the distinct ones).

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

Adding to 31110031113203 its reverse (30231113001113), we get a palindrome (61341144114316).

The spelling of 31110031113203 in words is "thirty-one trillion, one hundred ten billion, thirty-one million, one hundred thirteen thousand, two hundred three".