12001321104 has 20 divisors (see below), whose sum is σ = 31003412976. Its totient is φ = 4000440352.

The previous prime is 12001321099. The next prime is 12001321117. The reversal of 12001321104 is 40112310021.

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, 125013714 + ... + 125013809.

Almost surely, 2^12001321104 is an apocalyptic number.

It is an amenable number.

12001321104 is an abundant number, since it is smaller than the sum of its proper divisors (19002091872).

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

12001321104 is a wasteful number, since it uses less digits than its factorization.

12001321104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250027534 (or 250027528 counting only the distinct ones).

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

Adding to 12001321104 its reverse (40112310021), we get a palindrome (52113631125).

The spelling of 12001321104 in words is "twelve billion, one million, three hundred twenty-one thousand, one hundred four".