113403103121 has 16 divisors (see below), whose sum is σ = 145206925440. Its totient is φ = 85977780480.

The previous prime is 113403103109. The next prime is 113403103139. The reversal of 113403103121 is 121301304311.

It is a cyclic number.

It is not a de Polignac number, because 113403103121 - 2¹⁰ = 113403102097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 113403103093 and 113403103102.

It is not an unprimeable number, because it can be changed into a prime (113403103181) 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, 19899416 + ... + 19905113.

It is an arithmetic number, because the mean of its divisors is an integer number (9075432840).

Almost surely, 2^113403103121 is an apocalyptic number.

113403103121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113403103121 is a deficient number, since it is larger than the sum of its proper divisors (31803822319).

113403103121 is a wasteful number, since it uses less digits than its factorization.

113403103121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39804584.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 113403103121 its reverse (121301304311), we get a palindrome (234704407432).

The spelling of 113403103121 in words is "one hundred thirteen billion, four hundred three million, one hundred three thousand, one hundred twenty-one".