20333340013321 has 16 divisors (see below), whose sum is σ = 21752555166720. Its totient is φ = 18938939258880.

The previous prime is 20333340013313. The next prime is 20333340013339. The reversal of 20333340013321 is 12331004333302.

It is a cyclic number.

It is not a de Polignac number, because 20333340013321 - 2³ = 20333340013313 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 20333340013321.

It is not an unprimeable number, because it can be changed into a prime (20333340013351) 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, 30858220 + ... + 31510258.

It is an arithmetic number, because the mean of its divisors is an integer number (1359534697920).

Almost surely, 2^{20333340013321} is an apocalyptic number.

It is an amenable number.

20333340013321 is a deficient number, since it is larger than the sum of its proper divisors (1419215153399).

20333340013321 is a wasteful number, since it uses less digits than its factorization.

20333340013321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671064.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 20333340013321 its reverse (12331004333302), we get a palindrome (32664344346623).

The spelling of 20333340013321 in words is "twenty trillion, three hundred thirty-three billion, three hundred forty million, thirteen thousand, three hundred twenty-one".