12321023 has 8 divisors (see below), whose sum is σ = 14475216. Its totient is φ = 10339200.

The previous prime is 12321017. The next prime is 12321041. The reversal of 12321023 is 32012321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12321023 - 2²⁰ = 11272447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12320989 and 12321007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42938 + ... + 43223.

It is an arithmetic number, because the mean of its divisors is an integer number (1809402).

Almost surely, 2^12321023 is an apocalyptic number.

12321023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12321023 is a deficient number, since it is larger than the sum of its proper divisors (2154193).

12321023 is a wasteful number, since it uses less digits than its factorization.

12321023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86185.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12321023 is about 3510.1314790190. The cubic root of 12321023 is about 230.9664625262.

Adding to 12321023 its reverse (32012321), we get a palindrome (44333344).

The spelling of 12321023 in words is "twelve million, three hundred twenty-one thousand, twenty-three".