12321213032320 has 32 divisors (see below), whose sum is σ = 29455399906920. Its totient is φ = 4928485212672.

The previous prime is 12321213032231. The next prime is 12321213032389. The reversal of 12321213032320 is 2323031212321.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9625947042 + ... + 9625948321.

Almost surely, 2^{12321213032320} is an apocalyptic number.

12321213032320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12321213032320 is an abundant number, since it is smaller than the sum of its proper divisors (17134186874600).

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

12321213032320 is an equidigital number, since it uses as much as digits as its factorization.

12321213032320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19251895382 (or 19251895370 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 12321213032320 its reverse (2323031212321), we get a palindrome (14644244244641).

The spelling of 12321213032320 in words is "twelve trillion, three hundred twenty-one billion, two hundred thirteen million, thirty-two thousand, three hundred twenty".