12321311120 has 40 divisors (see below), whose sum is σ = 28705484160. Its totient is φ = 4918471040.

The previous prime is 12321311099. The next prime is 12321311131. The reversal of 12321311120 is 2111312321.

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

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, 117560 + ... + 196119.

It is an arithmetic number, because the mean of its divisors is an integer number (717637104).

Almost surely, 2^12321311120 is an apocalyptic number.

12321311120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12321311120 is an abundant number, since it is smaller than the sum of its proper divisors (16384173040).

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

12321311120 is a wasteful number, since it uses less digits than its factorization.

12321311120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314183 (or 314177 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12321311120 its reverse (2111312321), we get a palindrome (14432623441).

The spelling of 12321311120 in words is "twelve billion, three hundred twenty-one million, three hundred eleven thousand, one hundred twenty".