13412003515521 has 32 divisors (see below), whose sum is σ = 19502868672000. Its totient is φ = 8148717877248.

The previous prime is 13412003515517. The next prime is 13412003515529. The reversal of 13412003515521 is 12551530021431.

It is not a de Polignac number, because 13412003515521 - 2² = 13412003515517 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13412003515529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84737785 + ... + 84895913.

It is an arithmetic number, because the mean of its divisors is an integer number (609464646000).

Almost surely, 2^{13412003515521} is an apocalyptic number.

It is an amenable number.

13412003515521 is a deficient number, since it is larger than the sum of its proper divisors (6090865156479).

13412003515521 is a wasteful number, since it uses less digits than its factorization.

13412003515521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185753.

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 13412003515521 its reverse (12551530021431), we get a palindrome (25963533536952).

The spelling of 13412003515521 in words is "thirteen trillion, four hundred twelve billion, three million, five hundred fifteen thousand, five hundred twenty-one".