113431727271 has 24 divisors (see below), whose sum is σ = 161642023680. Its totient is φ = 70734188304.

The previous prime is 113431727261. The next prime is 113431727273. The reversal of 113431727271 is 172727134311.

It is a happy number.

It is not a de Polignac number, because 113431727271 - 2²⁶ = 113364618407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113431727273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 577345 + ... + 748458.

It is an arithmetic number, because the mean of its divisors is an integer number (6735084320).

Almost surely, 2^113431727271 is an apocalyptic number.

113431727271 is a deficient number, since it is larger than the sum of its proper divisors (48210296409).

113431727271 is a wasteful number, since it uses less digits than its factorization.

113431727271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325923 (or 1325904 counting only the distinct ones).

The product of its digits is 49392, while the sum is 39.

The spelling of 113431727271 in words is "one hundred thirteen billion, four hundred thirty-one million, seven hundred twenty-seven thousand, two hundred seventy-one".