12001311123321 has 32 divisors (see below), whose sum is σ = 18248254295040. Its totient is φ = 6954819223104.

The previous prime is 12001311123317. The next prime is 12001311123337. The reversal of 12001311123321 is 12332111310021.

It is not a de Polignac number, because 12001311123321 - 2² = 12001311123317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12001311123121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48367575 + ... + 48615068.

It is an arithmetic number, because the mean of its divisors is an integer number (570257946720).

Almost surely, 2^{12001311123321} is an apocalyptic number.

It is an amenable number.

12001311123321 is a deficient number, since it is larger than the sum of its proper divisors (6246943171719).

12001311123321 is a wasteful number, since it uses less digits than its factorization.

12001311123321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96982845.

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

Adding to 12001311123321 its reverse (12332111310021), we get a palindrome (24333422433342).

The spelling of 12001311123321 in words is "twelve trillion, one billion, three hundred eleven million, one hundred twenty-three thousand, three hundred twenty-one".