13321300321 has 16 divisors (see below), whose sum is σ = 15398280576. Its totient is φ = 11288065536.

The previous prime is 13321300319. The next prime is 13321300331. The reversal of 13321300321 is 12300312331.

It is a cyclic number.

It is not a de Polignac number, because 13321300321 - 2¹ = 13321300319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13321300331) 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, 632655 + ... + 653371.

It is an arithmetic number, because the mean of its divisors is an integer number (962392536).

Almost surely, 2^13321300321 is an apocalyptic number.

It is an amenable number.

13321300321 is a deficient number, since it is larger than the sum of its proper divisors (2076980255).

13321300321 is an equidigital number, since it uses as much as digits as its factorization.

13321300321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21768.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 13321300321 its reverse (12300312331), we get a palindrome (25621612652).

The spelling of 13321300321 in words is "thirteen billion, three hundred twenty-one million, three hundred thousand, three hundred twenty-one".