12321304023 has 16 divisors (see below), whose sum is σ = 18824871680. Its totient is φ = 7022163456.

The previous prime is 12321303991. The next prime is 12321304049. The reversal of 12321304023 is 32040312321.

It is not a de Polignac number, because 12321304023 - 2⁵ = 12321303991 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321304823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 766090 + ... + 782007.

It is an arithmetic number, because the mean of its divisors is an integer number (1176554480).

Almost surely, 2^12321304023 is an apocalyptic number.

12321304023 is a deficient number, since it is larger than the sum of its proper divisors (6503567657).

12321304023 is a wasteful number, since it uses less digits than its factorization.

12321304023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548486.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12321304023 its reverse (32040312321), we get a palindrome (44361616344).

The spelling of 12321304023 in words is "twelve billion, three hundred twenty-one million, three hundred four thousand, twenty-three".