11513500320 has 96 divisors (see below), whose sum is σ = 41448613248. Its totient is φ = 2631656448.

The previous prime is 11513500301. The next prime is 11513500331. The reversal of 11513500320 is 2300531511.

It is a tau number, because it is divible by the number of its divisors (96).

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

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, 1709959 + ... + 1716678.

It is an arithmetic number, because the mean of its divisors is an integer number (431756388).

Almost surely, 2^11513500320 is an apocalyptic number.

11513500320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11513500320 is an abundant number, since it is smaller than the sum of its proper divisors (29935112928).

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

11513500320 is a wasteful number, since it uses less digits than its factorization.

11513500320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3426662 (or 3426654 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

The spelling of 11513500320 in words is "eleven billion, five hundred thirteen million, five hundred thousand, three hundred twenty".