13134542523 has 4 divisors (see below), whose sum is σ = 17512723368. Its totient is φ = 8756361680.

The previous prime is 13134542507. The next prime is 13134542539. The reversal of 13134542523 is 32524543131.

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

It is an interprime number because it is at equal distance from previous prime (13134542507) and next prime (13134542539).

It is a cyclic number.

It is not a de Polignac number, because 13134542523 - 2⁴ = 13134542507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13134542423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2189090418 + ... + 2189090423.

It is an arithmetic number, because the mean of its divisors is an integer number (4378180842).

Almost surely, 2^13134542523 is an apocalyptic number.

13134542523 is a deficient number, since it is larger than the sum of its proper divisors (4378180845).

13134542523 is an equidigital number, since it uses as much as digits as its factorization.

13134542523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4378180844.

The product of its digits is 43200, while the sum is 33.

The spelling of 13134542523 in words is "thirteen billion, one hundred thirty-four million, five hundred forty-two thousand, five hundred twenty-three".