113120113031 has 4 divisors (see below), whose sum is σ = 113257562352. Its totient is φ = 112982663712.

The previous prime is 113120112953. The next prime is 113120113033. The reversal of 113120113031 is 130311021311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130311021311 = 61 ⋅2136246251.

It is a cyclic number.

It is not a de Polignac number, because 113120113031 - 2¹⁴ = 113120096647 is a prime.

It is a super-2 number, since 2×113120113031² (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 (113120113033) 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, 68723426 + ... + 68725071.

It is an arithmetic number, because the mean of its divisors is an integer number (28314390588).

Almost surely, 2^113120113031 is an apocalyptic number.

113120113031 is a deficient number, since it is larger than the sum of its proper divisors (137449321).

113120113031 is an equidigital number, since it uses as much as digits as its factorization.

113120113031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137449320.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 113120113031 its reverse (130311021311), we get a palindrome (243431134342).

The spelling of 113120113031 in words is "one hundred thirteen billion, one hundred twenty million, one hundred thirteen thousand, thirty-one".