12321231323 has 4 divisors (see below), whose sum is σ = 12325107888. Its totient is φ = 12317354760.

The previous prime is 12321231319. The next prime is 12321231347. The reversal of 12321231323 is 32313212321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32313212321 = 13 ⋅2485631717.

It is a cyclic number.

It is not a de Polignac number, because 12321231323 - 2² = 12321231319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12321237323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1933511 + ... + 1939872.

It is an arithmetic number, because the mean of its divisors is an integer number (3081276972).

Almost surely, 2^12321231323 is an apocalyptic number.

12321231323 is a deficient number, since it is larger than the sum of its proper divisors (3876565).

12321231323 is an equidigital number, since it uses as much as digits as its factorization.

12321231323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3876564.

The product of its digits is 1296, while the sum is 23.

Adding to 12321231323 its reverse (32313212321), we get a palindrome (44634443644).

The spelling of 12321231323 in words is "twelve billion, three hundred twenty-one million, two hundred thirty-one thousand, three hundred twenty-three".