113520163771 has 4 divisors (see below), whose sum is σ = 129737330032. Its totient is φ = 97302997512.

The previous prime is 113520163769. The next prime is 113520163789. The reversal of 113520163771 is 177361025311.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 113520163771 - 2¹ = 113520163769 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113520163771.

It is not an unprimeable number, because it can be changed into a prime (113520163741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8108583120 + ... + 8108583133.

It is an arithmetic number, because the mean of its divisors is an integer number (32434332508).

Almost surely, 2^113520163771 is an apocalyptic number.

113520163771 is a deficient number, since it is larger than the sum of its proper divisors (16217166261).

113520163771 is an equidigital number, since it uses as much as digits as its factorization.

113520163771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16217166260.

The product of its (nonzero) digits is 26460, while the sum is 37.

The spelling of 113520163771 in words is "one hundred thirteen billion, five hundred twenty million, one hundred sixty-three thousand, seven hundred seventy-one".