113355550521 has 24 divisors (see below), whose sum is σ = 169816046400. Its totient is φ = 75563263152.

The previous prime is 113355550513. The next prime is 113355550541. The reversal of 113355550521 is 125055553311.

113355550521 is a `hidden beast` number, since 1 + 1 + 3 + 3 + 55 + 550 + 52 + 1 = 666.

It is not a de Polignac number, because 113355550521 - 2³ = 113355550513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113355550501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4397356 + ... + 4423058.

It is an arithmetic number, because the mean of its divisors is an integer number (7075668600).

Almost surely, 2^113355550521 is an apocalyptic number.

It is an amenable number.

113355550521 is a deficient number, since it is larger than the sum of its proper divisors (56460495879).

113355550521 is an equidigital number, since it uses as much as digits as its factorization.

113355550521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43867 (or 43855 counting only the distinct ones).

The product of its (nonzero) digits is 56250, while the sum is 36.

The spelling of 113355550521 in words is "one hundred thirteen billion, three hundred fifty-five million, five hundred fifty thousand, five hundred twenty-one".