12321620633424 has 40 divisors (see below), whose sum is σ = 31911031824160. Its totient is φ = 4096861262208.

The previous prime is 12321620633401. The next prime is 12321620633459. The reversal of 12321620633424 is 42433602612321.

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, 323281234 + ... + 323319345.

It is an arithmetic number, because the mean of its divisors is an integer number (797775795604).

Almost surely, 2^{12321620633424} is an apocalyptic number.

It is an amenable number.

12321620633424 is an abundant number, since it is smaller than the sum of its proper divisors (19589411190736).

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

12321620633424 is a wasteful number, since it uses less digits than its factorization.

12321620633424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646600987 (or 646600981 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 12321620633424 in words is "twelve trillion, three hundred twenty-one billion, six hundred twenty million, six hundred thirty-three thousand, four hundred twenty-four".