113112133231 has 4 divisors (see below), whose sum is σ = 113619362752. Its totient is φ = 112604903712.

The previous prime is 113112133219. The next prime is 113112133241. The reversal of 113112133231 is 132331211311.

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 113112133231 - 2⁷ = 113112133103 is a prime.

It is a super-2 number, since 2×113112133231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113112133241) 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, 253614426 + ... + 253614871.

It is an arithmetic number, because the mean of its divisors is an integer number (28404840688).

Almost surely, 2^113112133231 is an apocalyptic number.

113112133231 is a deficient number, since it is larger than the sum of its proper divisors (507229521).

113112133231 is an equidigital number, since it uses as much as digits as its factorization.

113112133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507229520.

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

Adding to 113112133231 its reverse (132331211311), we get a palindrome (245443344542).

The spelling of 113112133231 in words is "one hundred thirteen billion, one hundred twelve million, one hundred thirty-three thousand, two hundred thirty-one".