13511442523 has 2 divisors, whose sum is σ = 13511442524. Its totient is φ = 13511442522.

The previous prime is 13511442521. The next prime is 13511442533. The reversal of 13511442523 is 32524411531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13511442523 - 2¹ = 13511442521 is a prime.

Together with 13511442521, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13511442521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6755721261 + 6755721262.

It is an arithmetic number, because the mean of its divisors is an integer number (6755721262).

Almost surely, 2^13511442523 is an apocalyptic number.

13511442523 is a deficient number, since it is larger than the sum of its proper divisors (1).

13511442523 is an equidigital number, since it uses as much as digits as its factorization.

13511442523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 31.

The spelling of 13511442523 in words is "thirteen billion, five hundred eleven million, four hundred forty-two thousand, five hundred twenty-three".