31113113223112 has 64 divisors (see below), whose sum is σ = 59999906534400. Its totient is φ = 15114356248320.

The previous prime is 31113113223097. The next prime is 31113113223139. The reversal of 31113113223112 is 21132231131113.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1199736898 + ... + 1199762830.

It is an arithmetic number, because the mean of its divisors is an integer number (937498539600).

Almost surely, 2^{31113113223112} is an apocalyptic number.

It is an amenable number.

31113113223112 is a deficient number, since it is larger than the sum of its proper divisors (28886793311288).

31113113223112 is a wasteful number, since it uses less digits than its factorization.

31113113223112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31646 (or 31642 counting only the distinct ones).

The product of its digits is 648, while the sum is 25.

Adding to 31113113223112 its reverse (21132231131113), we get a palindrome (52245344354225).

The spelling of 31113113223112 in words is "thirty-one trillion, one hundred thirteen billion, one hundred thirteen million, two hundred twenty-three thousand, one hundred twelve".