12001112331321 has 16 divisors (see below), whose sum is σ = 16434126186048. Its totient is φ = 7784424504000.

The previous prime is 12001112331311. The next prime is 12001112331389. The reversal of 12001112331321 is 12313321110021.

It is not a de Polignac number, because 12001112331321 - 2¹⁰ = 12001112330297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12001112331311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11308231 + ... + 12323891.

It is an arithmetic number, because the mean of its divisors is an integer number (1027132886628).

Almost surely, 2^{12001112331321} is an apocalyptic number.

It is an amenable number.

12001112331321 is a deficient number, since it is larger than the sum of its proper divisors (4433013854727).

12001112331321 is a wasteful number, since it uses less digits than its factorization.

12001112331321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122152.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 12001112331321 its reverse (12313321110021), we get a palindrome (24314433441342).

The spelling of 12001112331321 in words is "twelve trillion, one billion, one hundred twelve million, three hundred thirty-one thousand, three hundred twenty-one".