113447831520 has 48 divisors (see below), whose sum is σ = 357360670800. Its totient is φ = 30252754944.

The previous prime is 113447831461. The next prime is 113447831551. The reversal of 113447831520 is 25138744311.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118174345 + ... + 118175304.

It is an arithmetic number, because the mean of its divisors is an integer number (7445013975).

Almost surely, 2^113447831520 is an apocalyptic number.

113447831520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113447831520 is an abundant number, since it is smaller than the sum of its proper divisors (243912839280).

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

113447831520 is a wasteful number, since it uses less digits than its factorization.

113447831520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236349667 (or 236349659 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 113447831520 in words is "one hundred thirteen billion, four hundred forty-seven million, eight hundred thirty-one thousand, five hundred twenty".