113809100521 has 4 divisors (see below), whose sum is σ = 119799053200. Its totient is φ = 107819147844.

The previous prime is 113809100501. The next prime is 113809100527. The reversal of 113809100521 is 125001908311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113809100521 - 2¹³ = 113809092329 is a prime.

It is a super-2 number, since 2×113809100521² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113809100527) 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, 2994976311 + ... + 2994976348.

It is an arithmetic number, because the mean of its divisors is an integer number (29949763300).

Almost surely, 2^113809100521 is an apocalyptic number.

It is an amenable number.

113809100521 is a deficient number, since it is larger than the sum of its proper divisors (5989952679).

113809100521 is an equidigital number, since it uses as much as digits as its factorization.

113809100521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5989952678.

The product of its (nonzero) digits is 2160, while the sum is 31.

The spelling of 113809100521 in words is "one hundred thirteen billion, eight hundred nine million, one hundred thousand, five hundred twenty-one".