13531124099 has 4 divisors (see below), whose sum is σ = 13572003960. Its totient is φ = 13490244240.

The previous prime is 13531124081. The next prime is 13531124129. The reversal of 13531124099 is 99042113531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99042113531 = 3307 ⋅29949233.

It is a cyclic number.

It is not a de Polignac number, because 13531124099 - 2⁸ = 13531123843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13531124039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20439434 + ... + 20440095.

It is an arithmetic number, because the mean of its divisors is an integer number (3393000990).

Almost surely, 2^13531124099 is an apocalyptic number.

13531124099 is a deficient number, since it is larger than the sum of its proper divisors (40879861).

13531124099 is an equidigital number, since it uses as much as digits as its factorization.

13531124099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40879860.

The product of its (nonzero) digits is 29160, while the sum is 38.

The spelling of 13531124099 in words is "thirteen billion, five hundred thirty-one million, one hundred twenty-four thousand, ninety-nine".