113511005520 has 160 divisors (see below), whose sum is σ = 384114700800. Its totient is φ = 27500536320.

The previous prime is 113511005497. The next prime is 113511005539. The reversal of 113511005520 is 25500115311.

It is a super-2 number, since 2×113511005520² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4472707 + ... + 4498013.

It is an arithmetic number, because the mean of its divisors is an integer number (2400716880).

Almost surely, 2^113511005520 is an apocalyptic number.

113511005520 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 113511005520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192057350400).

113511005520 is an abundant number, since it is smaller than the sum of its proper divisors (270603695280).

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

113511005520 is a wasteful number, since it uses less digits than its factorization.

113511005520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27033 (or 27027 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

The spelling of 113511005520 in words is "one hundred thirteen billion, five hundred eleven million, five thousand, five hundred twenty".