113101520 has 80 divisors (see below), whose sum is σ = 302897280. Its totient is φ = 38472192.

The previous prime is 113101487. The next prime is 113101529. The reversal of 113101520 is 25101311.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 113101495 and 113101504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113101529) 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, 77114 + ... + 78566.

It is an arithmetic number, because the mean of its divisors is an integer number (3786216).

Almost surely, 2^113101520 is an apocalyptic number.

113101520 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 113101520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151448640).

113101520 is an abundant number, since it is smaller than the sum of its proper divisors (189795760).

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

113101520 is a wasteful number, since it uses less digits than its factorization.

113101520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612 (or 1606 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 113101520 is about 10634.9198398483. The cubic root of 113101520 is about 483.6035503154.

Adding to 113101520 its reverse (25101311), we get a palindrome (138202831).

The spelling of 113101520 in words is "one hundred thirteen million, one hundred one thousand, five hundred twenty".