113231404032 has 88 divisors (see below), whose sum is σ = 302127472656. Its totient is φ = 37703221248.

The previous prime is 113231404031. The next prime is 113231404037. The reversal of 113231404032 is 230404132311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 113231403993 and 113231404011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113231404031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2908278 + ... + 2946954.

Almost surely, 2^113231404032 is an apocalyptic number.

113231404032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113231404032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151063736328).

113231404032 is an abundant number, since it is smaller than the sum of its proper divisors (188896068624).

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

113231404032 is an equidigital number, since it uses as much as digits as its factorization.

113231404032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39653 (or 39635 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 113231404032 its reverse (230404132311), we get a palindrome (343635536343).

The spelling of 113231404032 in words is "one hundred thirteen billion, two hundred thirty-one million, four hundred four thousand, thirty-two".