113211131313 has 32 divisors (see below), whose sum is σ = 172867968000. Its totient is φ = 64558823616.

The previous prime is 113211131309. The next prime is 113211131329. The reversal of 113211131313 is 313131112311.

It is not a de Polignac number, because 113211131313 - 2² = 113211131309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 113211131313.

It is not an unprimeable number, because it can be changed into a prime (113211131303) 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, 24884763 + ... + 24889311.

It is an arithmetic number, because the mean of its divisors is an integer number (5402124000).

Almost surely, 2^113211131313 is an apocalyptic number.

It is an amenable number.

113211131313 is a deficient number, since it is larger than the sum of its proper divisors (59656836687).

113211131313 is a wasteful number, since it uses less digits than its factorization.

113211131313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6741.

The product of its digits is 162, while the sum is 21.

Adding to 113211131313 its reverse (313131112311), we get a palindrome (426342243624).

The spelling of 113211131313 in words is "one hundred thirteen billion, two hundred eleven million, one hundred thirty-one thousand, three hundred thirteen".