113504121 has 12 divisors (see below), whose sum is σ = 173594772. Its totient is φ = 71218176.

The previous prime is 113504117. The next prime is 113504137. The reversal of 113504121 is 121405311.

It can be written as a sum of positive squares in 2 ways, for example, as 73359225 + 40144896 = 8565^2 + 6336^2 .

It is not a de Polignac number, because 113504121 - 2² = 113504117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113504094 and 113504103.

It is not an unprimeable number, because it can be changed into a prime (113504191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 370776 + ... + 371081.

It is an arithmetic number, because the mean of its divisors is an integer number (14466231).

Almost surely, 2^113504121 is an apocalyptic number.

It is an amenable number.

113504121 is a deficient number, since it is larger than the sum of its proper divisors (60090651).

113504121 is a wasteful number, since it uses less digits than its factorization.

113504121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741880 (or 741877 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 113504121 is about 10653.8312826889. The cubic root of 113504121 is about 484.1766894114.

Adding to 113504121 its reverse (121405311), we get a palindrome (234909432).

The spelling of 113504121 in words is "one hundred thirteen million, five hundred four thousand, one hundred twenty-one".