12331221121320 has 32 divisors (see below), whose sum is σ = 36993663364320. Its totient is φ = 3288325632320.

The previous prime is 12331221121187. The next prime is 12331221121337. The reversal of 12331221121320 is 2312112213321.

12331221121320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 51380087886 + ... + 51380088125.

It is an arithmetic number, because the mean of its divisors is an integer number (1156051980135).

Almost surely, 2^{12331221121320} is an apocalyptic number.

12331221121320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12331221121320 is an abundant number, since it is smaller than the sum of its proper divisors (24662442243000).

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

12331221121320 is a wasteful number, since it uses less digits than its factorization.

12331221121320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102760176025 (or 102760176021 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 12331221121320 its reverse (2312112213321), we get a palindrome (14643333334641).

The spelling of 12331221121320 in words is "twelve trillion, three hundred thirty-one billion, two hundred twenty-one million, one hundred twenty-one thousand, three hundred twenty".