13003321301321 has 32 divisors (see below), whose sum is σ = 14598301232256. Its totient is φ = 11504109888000.

The previous prime is 13003321301317. The next prime is 13003321301401. The reversal of 13003321301321 is 12310312330031.

13003321301321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13003321301321 - 2² = 13003321301317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13003321331321) 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, 26121470 + ... + 26614616.

It is an arithmetic number, because the mean of its divisors is an integer number (456196913508).

Almost surely, 2^{13003321301321} is an apocalyptic number.

It is an amenable number.

13003321301321 is a deficient number, since it is larger than the sum of its proper divisors (1594979930935).

13003321301321 is a wasteful number, since it uses less digits than its factorization.

13003321301321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494073.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 13003321301321 its reverse (12310312330031), we get a palindrome (25313633631352).

The spelling of 13003321301321 in words is "thirteen trillion, three billion, three hundred twenty-one million, three hundred one thousand, three hundred twenty-one".