113400201231 has 16 divisors (see below), whose sum is σ = 170847763200. Its totient is φ = 74318774904.

The previous prime is 113400201197. The next prime is 113400201253. The reversal of 113400201231 is 132102004311.

113400201231 is a `hidden beast` number, since 1 + 13 + 400 + 20 + 1 + 231 = 666.

It is not a de Polignac number, because 113400201231 - 2¹⁸ = 113399939087 is a prime.

It is a super-2 number, since 2×113400201231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113400201281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35591691 + ... + 35594876.

It is an arithmetic number, because the mean of its divisors is an integer number (10677985200).

Almost surely, 2^113400201231 is an apocalyptic number.

113400201231 is a deficient number, since it is larger than the sum of its proper divisors (57447561969).

113400201231 is an equidigital number, since it uses as much as digits as its factorization.

113400201231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71186635 (or 71186629 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 113400201231 its reverse (132102004311), we get a palindrome (245502205542).

The spelling of 113400201231 in words is "one hundred thirteen billion, four hundred million, two hundred one thousand, two hundred thirty-one".