113687392051 has 4 divisors (see below), whose sum is σ = 113930834472. Its totient is φ = 113443949632.

The previous prime is 113687391989. The next prime is 113687392057. The reversal of 113687392051 is 150293786311.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 113687392051 - 2¹⁵ = 113687359283 is a prime.

It is a super-2 number, since 2×113687392051² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113687391992 and 113687392010.

It is not an unprimeable number, because it can be changed into a prime (113687392057) 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, 121720510 + ... + 121721443.

It is an arithmetic number, because the mean of its divisors is an integer number (28482708618).

Almost surely, 2^113687392051 is an apocalyptic number.

113687392051 is a deficient number, since it is larger than the sum of its proper divisors (243442421).

113687392051 is an equidigital number, since it uses as much as digits as its factorization.

113687392051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243442420.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 113687392051 in words is "one hundred thirteen billion, six hundred eighty-seven million, three hundred ninety-two thousand, fifty-one".