13204506036521 has 8 divisors (see below), whose sum is σ = 13257435643200. Its totient is φ = 13151578986000.

The previous prime is 13204506036487. The next prime is 13204506036523. The reversal of 13204506036521 is 12563060540231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13204506036521 - 2¹⁴ = 13204506020137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13204506036523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10072220 + ... + 11307458.

It is an arithmetic number, because the mean of its divisors is an integer number (1657179455400).

Almost surely, 2^{13204506036521} is an apocalyptic number.

It is an amenable number.

13204506036521 is a deficient number, since it is larger than the sum of its proper divisors (52929606679).

13204506036521 is a wasteful number, since it uses less digits than its factorization.

13204506036521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278079.

The product of its (nonzero) digits is 129600, while the sum is 38.

Adding to 13204506036521 its reverse (12563060540231), we get a palindrome (25767566576752).

The spelling of 13204506036521 in words is "thirteen trillion, two hundred four billion, five hundred six million, thirty-six thousand, five hundred twenty-one".