12331021112321 has 24 divisors (see below), whose sum is σ = 12866083211520. Its totient is φ = 11805898867200.

The previous prime is 12331021112303. The next prime is 12331021112329. The reversal of 12331021112321 is 12321112013321.

It is a happy number.

It is not a de Polignac number, because 12331021112321 - 2⁶ = 12331021112257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12331021112329) 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, 1032829370 + ... + 1032841308.

It is an arithmetic number, because the mean of its divisors is an integer number (536086800480).

Almost surely, 2^{12331021112321} is an apocalyptic number.

It is an amenable number.

12331021112321 is a deficient number, since it is larger than the sum of its proper divisors (535062099199).

12331021112321 is an equidigital number, since it uses as much as digits as its factorization.

12331021112321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15705 (or 15608 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12331021112321 its reverse (12321112013321), we get a palindrome (24652133125642).

The spelling of 12331021112321 in words is "twelve trillion, three hundred thirty-one billion, twenty-one million, one hundred twelve thousand, three hundred twenty-one".