12231323111 has 12 divisors (see below), whose sum is σ = 14846895792. Its totient is φ = 10028164608.

The previous prime is 12231323089. The next prime is 12231323173. The reversal of 12231323111 is 11132313221.

It is a happy number.

It is not a de Polignac number, because 12231323111 - 2²⁶ = 12164214247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231323191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5425370 + ... + 5427623.

It is an arithmetic number, because the mean of its divisors is an integer number (1237241316).

Almost surely, 2^12231323111 is an apocalyptic number.

12231323111 is a deficient number, since it is larger than the sum of its proper divisors (2615572681).

12231323111 is a wasteful number, since it uses less digits than its factorization.

12231323111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10853030 (or 10853023 counting only the distinct ones).

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

Adding to 12231323111 its reverse (11132313221), we get a palindrome (23363636332).

The spelling of 12231323111 in words is "twelve billion, two hundred thirty-one million, three hundred twenty-three thousand, one hundred eleven".