12133111323 has 4 divisors (see below), whose sum is σ = 16177481768. Its totient is φ = 8088740880.

The previous prime is 12133111303. The next prime is 12133111343. The reversal of 12133111323 is 32311133121.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (12133111303) and next prime (12133111343).

It is not a de Polignac number, because 12133111323 - 2¹² = 12133107227 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12133111323.

It is not an unprimeable number, because it can be changed into a prime (12133111303) 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, 2022185218 + ... + 2022185223.

It is an arithmetic number, because the mean of its divisors is an integer number (4044370442).

Almost surely, 2^12133111323 is an apocalyptic number.

12133111323 is a deficient number, since it is larger than the sum of its proper divisors (4044370445).

12133111323 is an equidigital number, since it uses as much as digits as its factorization.

12133111323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4044370444.

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

Adding to 12133111323 its reverse (32311133121), we get a palindrome (44444244444).

The spelling of 12133111323 in words is "twelve billion, one hundred thirty-three million, one hundred eleven thousand, three hundred twenty-three".