13133252554521 has 128 divisors (see below), whose sum is σ = 21447070617600. Its totient is φ = 7045250088960.

The previous prime is 13133252554493. The next prime is 13133252554529. The reversal of 13133252554521 is 12545525233131.

It is not a de Polignac number, because 13133252554521 - 2⁷ = 13133252554393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13133252554529) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1001843515 + ... + 1001856623.

It is an arithmetic number, because the mean of its divisors is an integer number (167555239200).

Almost surely, 2^{13133252554521} is an apocalyptic number.

13133252554521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13133252554521 is a deficient number, since it is larger than the sum of its proper divisors (8313818063079).

13133252554521 is a wasteful number, since it uses less digits than its factorization.

13133252554521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13839.

The product of its digits is 540000, while the sum is 42.

Adding to 13133252554521 its reverse (12545525233131), we get a palindrome (25678777787652).

The spelling of 13133252554521 in words is "thirteen trillion, one hundred thirty-three billion, two hundred fifty-two million, five hundred fifty-four thousand, five hundred twenty-one".