113030520 has 64 divisors (see below), whose sum is σ = 342299520. Its totient is φ = 29856384.

The previous prime is 113030513. The next prime is 113030521. The reversal of 113030520 is 25030311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 113030520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113030521) 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, 8439 + ... + 17241.

It is an arithmetic number, because the mean of its divisors is an integer number (5348430).

Almost surely, 2^113030520 is an apocalyptic number.

113030520 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 113030520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171149760).

113030520 is an abundant number, since it is smaller than the sum of its proper divisors (229269000).

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

113030520 is a wasteful number, since it uses less digits than its factorization.

113030520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8924 (or 8920 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 113030520 is about 10631.5812558622. The cubic root of 113030520 is about 483.5023343476.

Adding to 113030520 its reverse (25030311), we get a palindrome (138060831).

The spelling of 113030520 in words is "one hundred thirteen million, thirty thousand, five hundred twenty".