113121408169 has 16 divisors (see below), whose sum is σ = 141269990400. Its totient is φ = 87999359760.

The previous prime is 113121408157. The next prime is 113121408203. The reversal of 113121408169 is 961804121311.

It is a cyclic number.

It is not a de Polignac number, because 113121408169 - 2²⁵ = 113087853737 is a prime.

It is a super-2 number, since 2×113121408169² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113121403169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1180179 + ... + 1272424.

It is an arithmetic number, because the mean of its divisors is an integer number (8829374400).

Almost surely, 2^113121408169 is an apocalyptic number.

It is an amenable number.

113121408169 is a deficient number, since it is larger than the sum of its proper divisors (28148582231).

113121408169 is a wasteful number, since it uses less digits than its factorization.

113121408169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453220.

The product of its (nonzero) digits is 10368, while the sum is 37.

The spelling of 113121408169 in words is "one hundred thirteen billion, one hundred twenty-one million, four hundred eight thousand, one hundred sixty-nine".