113204312320 has 144 divisors (see below), whose sum is σ = 296395468992. Its totient is φ = 41083822080.

The previous prime is 113204312257. The next prime is 113204312393. The reversal of 113204312320 is 23213402311.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 113204312291 and 113204312300.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7356154 + ... + 7371526.

It is an arithmetic number, because the mean of its divisors is an integer number (2058301868).

Almost surely, 2^113204312320 is an apocalyptic number.

113204312320 is a gapful number since it is divisible by the number (10) 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 113204312320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148197734496).

113204312320 is an abundant number, since it is smaller than the sum of its proper divisors (183191156672).

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

113204312320 is a wasteful number, since it uses less digits than its factorization.

113204312320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15928 (or 15914 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 113204312320 its reverse (23213402311), we get a palindrome (136417714631).

It can be divided in two parts, 113204 and 312320, that added together give a palindrome (425524).

The spelling of 113204312320 in words is "one hundred thirteen billion, two hundred four million, three hundred twelve thousand, three hundred twenty".