12321012604044 has 24 divisors (see below), whose sum is σ = 28758005156160. Its totient is φ = 4105721951824.

The previous prime is 12321012604009. The next prime is 12321012604127. The reversal of 12321012604044 is 44040621012321.

It is a super-2 number, since 2×12321012604044² (a number of 27 digits) contains 22 as substring.

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, 160241154 + ... + 160318025.

It is an arithmetic number, because the mean of its divisors is an integer number (1198250214840).

Almost surely, 2^{12321012604044} is an apocalyptic number.

It is an amenable number.

12321012604044 is an abundant number, since it is smaller than the sum of its proper divisors (16436992552116).

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

12321012604044 is a wasteful number, since it uses less digits than its factorization.

12321012604044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320562389 (or 320562387 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 12321012604044 its reverse (44040621012321), we get a palindrome (56361633616365).

The spelling of 12321012604044 in words is "twelve trillion, three hundred twenty-one billion, twelve million, six hundred four thousand, forty-four".