113381506686 has 32 divisors (see below), whose sum is σ = 259337963520. Its totient is φ = 32372186976.

The previous prime is 113381506669. The next prime is 113381506691. The reversal of 113381506686 is 686605183311.

It is a congruent number.

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, 877561 + ... + 998436.

It is an arithmetic number, because the mean of its divisors is an integer number (8104311360).

Almost surely, 2^113381506686 is an apocalyptic number.

113381506686 is an abundant number, since it is smaller than the sum of its proper divisors (145956456834).

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

113381506686 is a wasteful number, since it uses less digits than its factorization.

113381506686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1877448.

The product of its (nonzero) digits is 622080, while the sum is 48.

Adding to 113381506686 its reverse (686605183311), we get a palindrome (799986689997).

The spelling of 113381506686 in words is "one hundred thirteen billion, three hundred eighty-one million, five hundred six thousand, six hundred eighty-six".