113111111213131 has 4 divisors (see below), whose sum is σ = 119764705990392. Its totient is φ = 106457516435872.

The previous prime is 113111111213129. The next prime is 113111111213153. The reversal of 113111111213131 is 131312111111311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113111111213131 - 2¹ = 113111111213129 is a prime.

It is a super-2 number, since 2×113111111213131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113111111253131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3326797388605 + ... + 3326797388638.

It is an arithmetic number, because the mean of its divisors is an integer number (29941176497598).

Almost surely, 2^{113111111213131} is an apocalyptic number.

113111111213131 is a deficient number, since it is larger than the sum of its proper divisors (6653594777261).

113111111213131 is an equidigital number, since it uses as much as digits as its factorization.

113111111213131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6653594777260.

The product of its digits is 54, while the sum is 22.

Adding to 113111111213131 its reverse (131312111111311), we get a palindrome (244423222324442).

The spelling of 113111111213131 in words is "one hundred thirteen trillion, one hundred eleven billion, one hundred eleven million, two hundred thirteen thousand, one hundred thirty-one".