13104450412521 has 16 divisors (see below), whose sum is σ = 18843489362880. Its totient is φ = 8052773198400.

The previous prime is 13104450412511. The next prime is 13104450412553. The reversal of 13104450412521 is 12521405440131.

It is not a de Polignac number, because 13104450412521 - 2²¹ = 13104448315369 is a prime.

It is a super-2 number, since 2×13104450412521² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13104450412511) 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, 239638531 + ... + 239693208.

It is an arithmetic number, because the mean of its divisors is an integer number (1177718085180).

Almost surely, 2^{13104450412521} is an apocalyptic number.

It is an amenable number.

13104450412521 is a deficient number, since it is larger than the sum of its proper divisors (5739038950359).

13104450412521 is a wasteful number, since it uses less digits than its factorization.

13104450412521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479332456.

The product of its (nonzero) digits is 19200, while the sum is 33.

Adding to 13104450412521 its reverse (12521405440131), we get a palindrome (25625855852652).

The spelling of 13104450412521 in words is "thirteen trillion, one hundred four billion, four hundred fifty million, four hundred twelve thousand, five hundred twenty-one".