13321136146525 has 12 divisors (see below), whose sum is σ = 16669752025300. Its totient is φ = 10559139108480.

The previous prime is 13321136146499. The next prime is 13321136146537. The reversal of 13321136146525 is 52564163112331.

It can be written as a sum of positive squares in 6 ways, for example, as 697462160164 + 12623673986361 = 835142^2 + 3552981^2 .

It is not a de Polignac number, because 13321136146525 - 2²⁷ = 13321001928797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2444242440 + ... + 2444247889.

Almost surely, 2^{13321136146525} is an apocalyptic number.

It is an amenable number.

13321136146525 is a deficient number, since it is larger than the sum of its proper divisors (3348615878775).

13321136146525 is a wasteful number, since it uses less digits than its factorization.

13321136146525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4888490448 (or 4888490443 counting only the distinct ones).

The product of its digits is 388800, while the sum is 43.

Adding to 13321136146525 its reverse (52564163112331), we get a palindrome (65885299258856).

The spelling of 13321136146525 in words is "thirteen trillion, three hundred twenty-one billion, one hundred thirty-six million, one hundred forty-six thousand, five hundred twenty-five".