2001013112321 has 8 divisors (see below), whose sum is σ = 2070427800000. Its totient is φ = 1931626040400.

The previous prime is 2001013112281. The next prime is 2001013112341. The reversal of 2001013112321 is 1232113101002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001013112321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2001013112321.

It is not an unprimeable number, because it can be changed into a prime (2001013112341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6756455 + ... + 7046396.

It is an arithmetic number, because the mean of its divisors is an integer number (258803475000).

Almost surely, 2^{2001013112321} is an apocalyptic number.

It is an amenable number.

2001013112321 is a deficient number, since it is larger than the sum of its proper divisors (69414687679).

2001013112321 is a wasteful number, since it uses less digits than its factorization.

2001013112321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13807879.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 2001013112321 its reverse (1232113101002), we get a palindrome (3233126213323).

The spelling of 2001013112321 in words is "two trillion, one billion, thirteen million, one hundred twelve thousand, three hundred twenty-one".