12113202331 has 4 divisors (see below), whose sum is σ = 12160335672. Its totient is φ = 12066068992.

The previous prime is 12113202313. The next prime is 12113202337. The reversal of 12113202331 is 13320231121.

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

It is a cyclic number.

It is not a de Polignac number, because 12113202331 - 2⁷ = 12113202203 is a prime.

It is a super-2 number, since 2×12113202331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12113202299 and 12113202308.

It is not an unprimeable number, because it can be changed into a prime (12113202337) 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, 23566285 + ... + 23566798.

It is an arithmetic number, because the mean of its divisors is an integer number (3040083918).

Almost surely, 2^12113202331 is an apocalyptic number.

12113202331 is a deficient number, since it is larger than the sum of its proper divisors (47133341).

12113202331 is an equidigital number, since it uses as much as digits as its factorization.

12113202331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47133340.

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

Adding to 12113202331 its reverse (13320231121), we get a palindrome (25433433452).

The spelling of 12113202331 in words is "twelve billion, one hundred thirteen million, two hundred two thousand, three hundred thirty-one".