113123231311 has 4 divisors (see below), whose sum is σ = 113370766192. Its totient is φ = 112875696432.

The previous prime is 113123231281. The next prime is 113123231321. The reversal of 113123231311 is 113132321311.

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 113123231311 - 2²⁷ = 112989013583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113123231321) 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, 123766755 + ... + 123767668.

It is an arithmetic number, because the mean of its divisors is an integer number (28342691548).

Almost surely, 2^113123231311 is an apocalyptic number.

113123231311 is a deficient number, since it is larger than the sum of its proper divisors (247534881).

113123231311 is an equidigital number, since it uses as much as digits as its factorization.

113123231311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247534880.

The product of its digits is 324, while the sum is 22.

Adding to 113123231311 its reverse (113132321311), we get a palindrome (226255552622).

The spelling of 113123231311 in words is "one hundred thirteen billion, one hundred twenty-three million, two hundred thirty-one thousand, three hundred eleven".