2013320123321 has 32 divisors (see below), whose sum is σ = 2191440787200. Its totient is φ = 1838641109760.

The previous prime is 2013320123317. The next prime is 2013320123369. The reversal of 2013320123321 is 1233210233102.

It is not a de Polignac number, because 2013320123321 - 2² = 2013320123317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2013320153321) 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, 548437316 + ... + 548440986.

It is an arithmetic number, because the mean of its divisors is an integer number (68482524600).

Almost surely, 2^{2013320123321} is an apocalyptic number.

It is an amenable number.

2013320123321 is a deficient number, since it is larger than the sum of its proper divisors (178120663879).

2013320123321 is a wasteful number, since it uses less digits than its factorization.

2013320123321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4929.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2013320123321 its reverse (1233210233102), we get a palindrome (3246530356423).

The spelling of 2013320123321 in words is "two trillion, thirteen billion, three hundred twenty million, one hundred twenty-three thousand, three hundred twenty-one".