113431342131 has 24 divisors (see below), whose sum is σ = 165367962240. Its totient is φ = 74918704896.

The previous prime is 113431342097. The next prime is 113431342133. The reversal of 113431342131 is 131243134311.

113431342131 is a `hidden beast` number, since 1 + 13 + 431 + 3 + 4 + 213 + 1 = 666.

It is not a de Polignac number, because 113431342131 - 2⁹ = 113431341619 is a prime.

It is a super-2 number, since 2×113431342131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113431342095 and 113431342104.

It is not an unprimeable number, because it can be changed into a prime (113431342133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2406270 + ... + 2452956.

It is an arithmetic number, because the mean of its divisors is an integer number (6890331760).

Almost surely, 2^113431342131 is an apocalyptic number.

113431342131 is a deficient number, since it is larger than the sum of its proper divisors (51936620109).

113431342131 is a wasteful number, since it uses less digits than its factorization.

113431342131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49195 (or 49192 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 113431342131 its reverse (131243134311), we get a palindrome (244674476442).

The spelling of 113431342131 in words is "one hundred thirteen billion, four hundred thirty-one million, three hundred forty-two thousand, one hundred thirty-one".