12304322320 has 80 divisors (see below), whose sum is σ = 29065675392. Its totient is φ = 4843514880.

The previous prime is 12304322311. The next prime is 12304322341. The reversal of 12304322320 is 2322340321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 12304322291 and 12304322300.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1338540 + ... + 1347700.

Almost surely, 2^12304322320 is an apocalyptic number.

12304322320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12304322320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14532837696).

12304322320 is an abundant number, since it is smaller than the sum of its proper divisors (16761353072).

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

12304322320 is a wasteful number, since it uses less digits than its factorization.

12304322320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9440 (or 9434 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 12304322320 its reverse (2322340321), we get a palindrome (14626662641).

The spelling of 12304322320 in words is "twelve billion, three hundred four million, three hundred twenty-two thousand, three hundred twenty".