13525121522411 has 4 divisors (see below), whose sum is σ = 13525150704792. Its totient is φ = 13525092340032.

The previous prime is 13525121522387. The next prime is 13525121522431. The reversal of 13525121522411 is 11422512152531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13525121522411 - 2³⁰ = 13524047780587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13525121522431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13884581 + ... + 14826726.

It is an arithmetic number, because the mean of its divisors is an integer number (3381287676198).

Almost surely, 2^{13525121522411} is an apocalyptic number.

13525121522411 is a deficient number, since it is larger than the sum of its proper divisors (29182381).

13525121522411 is an equidigital number, since it uses as much as digits as its factorization.

13525121522411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29182380.

The product of its digits is 24000, while the sum is 35.

Adding to 13525121522411 its reverse (11422512152531), we get a palindrome (24947633674942).

The spelling of 13525121522411 in words is "thirteen trillion, five hundred twenty-five billion, one hundred twenty-one million, five hundred twenty-two thousand, four hundred eleven".