13531135523 has 2 divisors, whose sum is σ = 13531135524. Its totient is φ = 13531135522.

The previous prime is 13531135489. The next prime is 13531135537. The reversal of 13531135523 is 32553113531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13531135523 - 2¹⁶ = 13531069987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13531135523.

It is not a weakly prime, because it can be changed into another prime (13531132523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765567761 + 6765567762.

It is an arithmetic number, because the mean of its divisors is an integer number (6765567762).

Almost surely, 2^13531135523 is an apocalyptic number.

13531135523 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531135523 is an equidigital number, since it uses as much as digits as its factorization.

13531135523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20250, while the sum is 32.

The spelling of 13531135523 in words is "thirteen billion, five hundred thirty-one million, one hundred thirty-five thousand, five hundred twenty-three".