113232232121 has 4 divisors (see below), whose sum is σ = 118155372672. Its totient is φ = 108309091572.

The previous prime is 113232232117. The next prime is 113232232123. The reversal of 113232232121 is 121232232311.

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 113232232121 - 2² = 113232232117 is a prime.

It is a super-2 number, since 2×113232232121² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 4923140527 = 113232232121 / (1 + 1 + 3 + 2 + 3 + 2 + 2 + 3 + 2 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113232232123) 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, 2461570241 + ... + 2461570286.

It is an arithmetic number, because the mean of its divisors is an integer number (29538843168).

Almost surely, 2^113232232121 is an apocalyptic number.

It is an amenable number.

113232232121 is a deficient number, since it is larger than the sum of its proper divisors (4923140551).

113232232121 is an equidigital number, since it uses as much as digits as its factorization.

113232232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4923140550.

The product of its digits is 864, while the sum is 23.

Adding to 113232232121 its reverse (121232232311), we get a palindrome (234464464432).

The spelling of 113232232121 in words is "one hundred thirteen billion, two hundred thirty-two million, two hundred thirty-two thousand, one hundred twenty-one".