12023131323 has 32 divisors (see below), whose sum is σ = 19794585600. Its totient is φ = 6466212480.

The previous prime is 12023131321. The next prime is 12023131331. The reversal of 12023131323 is 32313132021.

It is not a de Polignac number, because 12023131323 - 2¹ = 12023131321 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12023131323.

It is not an unprimeable number, because it can be changed into a prime (12023131321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 326163 + ... + 361148.

It is an arithmetic number, because the mean of its divisors is an integer number (618580800).

Almost surely, 2^12023131323 is an apocalyptic number.

12023131323 is a deficient number, since it is larger than the sum of its proper divisors (7771454277).

12023131323 is an equidigital number, since it uses as much as digits as its factorization.

12023131323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687352 (or 687338 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12023131323 its reverse (32313132021), we get a palindrome (44336263344).

The spelling of 12023131323 in words is "twelve billion, twenty-three million, one hundred thirty-one thousand, three hundred twenty-three".