12331322320 has 40 divisors (see below), whose sum is σ = 29280340224. Its totient is φ = 4827580032.

The previous prime is 12331322309. The next prime is 12331322359. The reversal of 12331322320 is 2322313321.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 12331322291 and 12331322300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1636044 + ... + 1643563.

Almost surely, 2^12331322320 is an apocalyptic number.

12331322320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12331322320 is an abundant number, since it is smaller than the sum of its proper divisors (16949017904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12331322320 is a wasteful number, since it uses less digits than its factorization.

12331322320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3279667 (or 3279661 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 12331322320 its reverse (2322313321), we get a palindrome (14653635641).

The spelling of 12331322320 in words is "twelve billion, three hundred thirty-one million, three hundred twenty-two thousand, three hundred twenty".