13521425213 has 2 divisors, whose sum is σ = 13521425214. Its totient is φ = 13521425212.

The previous prime is 13521425209. The next prime is 13521425233. The reversal of 13521425213 is 31252412531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13520573284 + 851929 = 116278^2 + 923^2 .

It is an emirp because it is prime and its reverse (31252412531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13521425213 - 2² = 13521425209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13521425233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6760712606 + 6760712607.

It is an arithmetic number, because the mean of its divisors is an integer number (6760712607).

Almost surely, 2^13521425213 is an apocalyptic number.

It is an amenable number.

13521425213 is a deficient number, since it is larger than the sum of its proper divisors (1).

13521425213 is an equidigital number, since it uses as much as digits as its factorization.

13521425213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

Adding to 13521425213 its reverse (31252412531), we get a palindrome (44773837744).

The spelling of 13521425213 in words is "thirteen billion, five hundred twenty-one million, four hundred twenty-five thousand, two hundred thirteen".