13204554040321 has 4 divisors (see below), whose sum is σ = 15090918903232. Its totient is φ = 11318189177412.

The previous prime is 13204554040289. The next prime is 13204554040357. The reversal of 13204554040321 is 12304045540231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13204554040321 - 2⁵ = 13204554040289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13204554040361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943182431445 + ... + 943182431458.

It is an arithmetic number, because the mean of its divisors is an integer number (3772729725808).

Almost surely, 2^{13204554040321} is an apocalyptic number.

It is an amenable number.

13204554040321 is a deficient number, since it is larger than the sum of its proper divisors (1886364862911).

13204554040321 is an equidigital number, since it uses as much as digits as its factorization.

13204554040321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886364862910.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 13204554040321 its reverse (12304045540231), we get a palindrome (25508599580552).

The spelling of 13204554040321 in words is "thirteen trillion, two hundred four billion, five hundred fifty-four million, forty thousand, three hundred twenty-one".