1021330321013 has 16 divisors (see below), whose sum is σ = 1087920599040. Its totient is φ = 956714691504.

The previous prime is 1021330321007. The next prime is 1021330321031. The reversal of 1021330321013 is 3101230331201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021330321013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021330321003) 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, 1073981 + ... + 1787762.

It is an arithmetic number, because the mean of its divisors is an integer number (67995037440).

Almost surely, 2^{1021330321013} is an apocalyptic number.

It is an amenable number.

1021330321013 is a deficient number, since it is larger than the sum of its proper divisors (66590278027).

1021330321013 is a wasteful number, since it uses less digits than its factorization.

1021330321013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862088.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1021330321013 its reverse (3101230331201), we get a palindrome (4122560652214).

The spelling of 1021330321013 in words is "one trillion, twenty-one billion, three hundred thirty million, three hundred twenty-one thousand, thirteen".