12321013023 has 24 divisors (see below), whose sum is σ = 20041222656. Its totient is φ = 7226398800.

The previous prime is 12321013013. The next prime is 12321013043. The reversal of 12321013023 is 32031012321.

It is not a de Polignac number, because 12321013023 - 2⁹ = 12321012511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12321012987 and 12321013005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321013013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2004265 + ... + 2010402.

It is an arithmetic number, because the mean of its divisors is an integer number (835050944).

Almost surely, 2^12321013023 is an apocalyptic number.

12321013023 is a deficient number, since it is larger than the sum of its proper divisors (7720209633).

12321013023 is a wasteful number, since it uses less digits than its factorization.

12321013023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014715 (or 4014712 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12321013023 its reverse (32031012321), we get a palindrome (44352025344).

The spelling of 12321013023 in words is "twelve billion, three hundred twenty-one million, thirteen thousand, twenty-three".