113431253504 has 80 divisors (see below), whose sum is σ = 232943581728. Its totient is φ = 55150190592.

The previous prime is 113431253503. The next prime is 113431253557. The reversal of 113431253504 is 405352134311.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (113431253503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4986284 + ... + 5008980.

Almost surely, 2^113431253504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113431253504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116471790864).

113431253504 is an abundant number, since it is smaller than the sum of its proper divisors (119512328224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113431253504 is an equidigital number, since it uses as much as digits as its factorization.

113431253504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22985 (or 22969 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 113431253504 its reverse (405352134311), we get a palindrome (518783387815).

The spelling of 113431253504 in words is "one hundred thirteen billion, four hundred thirty-one million, two hundred fifty-three thousand, five hundred four".