12323331111 has 64 divisors (see below), whose sum is σ = 20895257600. Its totient is φ = 6323660928.

The previous prime is 12323331103. The next prime is 12323331179. The reversal of 12323331111 is 11113332321.

It is a happy number.

It is not a de Polignac number, because 12323331111 - 2³ = 12323331103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is the 111011-st Hogben number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12323336111) by changing a digit.

It is a nontrivial repunit in base 111010.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1703460 + ... + 1710678.

It is an arithmetic number, because the mean of its divisors is an integer number (326488400).

Almost surely, 2^12323331111 is an apocalyptic number.

12323331111 is a deficient number, since it is larger than the sum of its proper divisors (8571926489).

12323331111 is an equidigital number, since it uses as much as digits as its factorization.

12323331111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7305 (or 7279 counting only the distinct ones).

The product of its digits is 324, while the sum is 21.

Adding to 12323331111 its reverse (11113332321), we get a palindrome (23436663432).

The spelling of 12323331111 in words is "twelve billion, three hundred twenty-three million, three hundred thirty-one thousand, one hundred eleven".