113122002121 has 4 divisors (see below), whose sum is σ = 113383254292. Its totient is φ = 112860749952.

The previous prime is 113122002053. The next prime is 113122002127. The reversal of 113122002121 is 121200221311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51984000000 + 61138002121 = 228000^2 + 247261^2 .

It is a cyclic number.

It is not a de Polignac number, because 113122002121 - 2¹⁵ = 113121969353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113122002095 and 113122002104.

It is not an unprimeable number, because it can be changed into a prime (113122002127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130625436 + ... + 130626301.

It is an arithmetic number, because the mean of its divisors is an integer number (28345813573).

Almost surely, 2^113122002121 is an apocalyptic number.

It is an amenable number.

113122002121 is a deficient number, since it is larger than the sum of its proper divisors (261252171).

113122002121 is an equidigital number, since it uses as much as digits as its factorization.

113122002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261252170.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 113122002121 its reverse (121200221311), we get a palindrome (234322223432).

The spelling of 113122002121 in words is "one hundred thirteen billion, one hundred twenty-two million, two thousand, one hundred twenty-one".