12321120120 has 32 divisors (see below), whose sum is σ = 36963360720. Its totient is φ = 3285632000.

The previous prime is 12321120089. The next prime is 12321120137. The reversal of 12321120120 is 2102112321.

It is a super-2 number, since 2×12321120120² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12321120120.

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, 51337881 + ... + 51338120.

Almost surely, 2^12321120120 is an apocalyptic number.

12321120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12321120120 is an abundant number, since it is smaller than the sum of its proper divisors (24642240600).

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

12321120120 is a wasteful number, since it uses less digits than its factorization.

12321120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102676015 (or 102676011 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12321120120 its reverse (2102112321), we get a palindrome (14423232441).

The spelling of 12321120120 in words is "twelve billion, three hundred twenty-one million, one hundred twenty thousand, one hundred twenty".