113685656401 has 4 divisors (see below), whose sum is σ = 120373047972. Its totient is φ = 106998264832.

The previous prime is 113685656393. The next prime is 113685656453. The reversal of 113685656401 is 104656586311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104656586311 = 17 ⋅6156269783.

It can be written as a sum of positive squares in 2 ways, for example, as 81667922176 + 32017734225 = 285776^2 + 178935^2 .

It is a cyclic number.

It is not a de Polignac number, because 113685656401 - 2³ = 113685656393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113685656501) 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, 3343695760 + ... + 3343695793.

It is an arithmetic number, because the mean of its divisors is an integer number (30093261993).

Almost surely, 2^113685656401 is an apocalyptic number.

It is an amenable number.

113685656401 is a deficient number, since it is larger than the sum of its proper divisors (6687391571).

113685656401 is an equidigital number, since it uses as much as digits as its factorization.

113685656401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6687391570.

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 113685656401 in words is "one hundred thirteen billion, six hundred eighty-five million, six hundred fifty-six thousand, four hundred one".