31112222221113 has 16 divisors (see below), whose sum is σ = 47916149731776. Its totient is φ = 17746722122240.

The previous prime is 31112222221061. The next prime is 31112222221139.

31112222221113 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31112222221113 - 2⁶ = 31112222221049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31112222220113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27729252756 + ... + 27729253877.

It is an arithmetic number, because the mean of its divisors is an integer number (2994759358236).

Almost surely, 2^{31112222221113} is an apocalyptic number.

31112222221113 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31112222221113 is a deficient number, since it is larger than the sum of its proper divisors (16803927510663).

31112222221113 is a wasteful number, since it uses less digits than its factorization.

31112222221113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55458506664.

The product of its digits is 576, while the sum is 24.

It can be divided in two parts, 3111222 and 2221113, that added together give a palindrome (5332335).

The spelling of 31112222221113 in words is "thirty-one trillion, one hundred twelve billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred thirteen".