1232231113 has 4 divisors (see below), whose sum is σ = 1232317440. Its totient is φ = 1232144788.

The previous prime is 1232231071. The next prime is 1232231123. The reversal of 1232231113 is 3111322321.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3111322321 = 163 ⋅19087867.

It is a cyclic number.

It is not a de Polignac number, because 1232231113 - 2²⁹ = 695360201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232231123) 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, 16093 + ... + 52186.

It is an arithmetic number, because the mean of its divisors is an integer number (308079360).

Almost surely, 2^1232231113 is an apocalyptic number.

It is an amenable number.

1232231113 is a deficient number, since it is larger than the sum of its proper divisors (86327).

1232231113 is an equidigital number, since it uses as much as digits as its factorization.

1232231113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86326.

The product of its digits is 216, while the sum is 19.

The square root of 1232231113 is about 35103.1496165230. The cubic root of 1232231113 is about 1072.0887121325.

Adding to 1232231113 its reverse (3111322321), we get a palindrome (4343553434).

The spelling of 1232231113 in words is "one billion, two hundred thirty-two million, two hundred thirty-one thousand, one hundred thirteen".