31113321112 has 16 divisors (see below), whose sum is σ = 58543620840. Its totient is φ = 15501688896.

The previous prime is 31113321061. The next prime is 31113321149. The reversal of 31113321112 is 21112331113.

It is a self number, because there is not a number n which added to its sum of digits gives 31113321112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6869053 + ... + 6873580.

Almost surely, 2^31113321112 is an apocalyptic number.

It is an amenable number.

31113321112 is a deficient number, since it is larger than the sum of its proper divisors (27430299728).

31113321112 is a wasteful number, since it uses less digits than its factorization.

31113321112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13742922 (or 13742918 counting only the distinct ones).

The product of its digits is 108, while the sum is 19.

Adding to 31113321112 its reverse (21112331113), we get a palindrome (52225652225).

The spelling of 31113321112 in words is "thirty-one billion, one hundred thirteen million, three hundred twenty-one thousand, one hundred twelve".