13120231111113 has 32 divisors (see below), whose sum is σ = 19999932825600. Its totient is φ = 7494575662080.

The previous prime is 13120231111109. The next prime is 13120231111133. The reversal of 13120231111113 is 31111113202131.

It is not a de Polignac number, because 13120231111113 - 2² = 13120231111109 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 13120231111113.

It is not an unprimeable number, because it can be changed into a prime (13120231111103) 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, 1227676056 + ... + 1227686742.

It is an arithmetic number, because the mean of its divisors is an integer number (624997900800).

Almost surely, 2^{13120231111113} is an apocalyptic number.

It is an amenable number.

13120231111113 is a deficient number, since it is larger than the sum of its proper divisors (6879701714487).

13120231111113 is a wasteful number, since it uses less digits than its factorization.

13120231111113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26277.

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 13120231111113 its reverse (31111113202131), we get a palindrome (44231344313244).

The spelling of 13120231111113 in words is "thirteen trillion, one hundred twenty billion, two hundred thirty-one million, one hundred eleven thousand, one hundred thirteen".