113611761523 has 16 divisors (see below), whose sum is σ = 126417227776. Its totient is φ = 101393557920.

The previous prime is 113611761517. The next prime is 113611761563. The reversal of 113611761523 is 325167116311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113611761523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113611761563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295786 + ... + 560992.

It is an arithmetic number, because the mean of its divisors is an integer number (7901076736).

Almost surely, 2^113611761523 is an apocalyptic number.

113611761523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

113611761523 is a deficient number, since it is larger than the sum of its proper divisors (12805466253).

113611761523 is a wasteful number, since it uses less digits than its factorization.

113611761523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266314.

The product of its digits is 22680, while the sum is 37.

Adding to 113611761523 its reverse (325167116311), we get a palindrome (438778877834).

The spelling of 113611761523 in words is "one hundred thirteen billion, six hundred eleven million, seven hundred sixty-one thousand, five hundred twenty-three".