13523213563 has 2 divisors, whose sum is σ = 13523213564. Its totient is φ = 13523213562.

The previous prime is 13523213551. The next prime is 13523213579. The reversal of 13523213563 is 36531232531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13523213563 - 2⁹ = 13523213051 is a prime.

It is not a weakly prime, because it can be changed into another prime (13523213593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6761606781 + 6761606782.

It is an arithmetic number, because the mean of its divisors is an integer number (6761606782).

Almost surely, 2^13523213563 is an apocalyptic number.

13523213563 is a deficient number, since it is larger than the sum of its proper divisors (1).

13523213563 is an equidigital number, since it uses as much as digits as its factorization.

13523213563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 34.

The spelling of 13523213563 in words is "thirteen billion, five hundred twenty-three million, two hundred thirteen thousand, five hundred sixty-three".