113234520 has 128 divisors (see below), whose sum is σ = 405181440. Its totient is φ = 24752640.

The previous prime is 113234503. The next prime is 113234557. The reversal of 113234520 is 25432311.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16390 + ... + 22250.

It is an arithmetic number, because the mean of its divisors is an integer number (3165480).

Almost surely, 2^113234520 is an apocalyptic number.

113234520 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 113234520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202590720).

113234520 is an abundant number, since it is smaller than the sum of its proper divisors (291946920).

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

113234520 is a wasteful number, since it uses less digits than its factorization.

113234520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5905 (or 5901 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 113234520 is about 10641.1709881949. The cubic root of 113234520 is about 483.7930381222.

Adding to 113234520 its reverse (25432311), we get a palindrome (138666831).

The spelling of 113234520 in words is "one hundred thirteen million, two hundred thirty-four thousand, five hundred twenty".