13531155513 has 16 divisors (see below), whose sum is σ = 18388273536. Its totient is φ = 8847521280.

The previous prime is 13531155511. The next prime is 13531155529. The reversal of 13531155513 is 31555113531.

It is not a de Polignac number, because 13531155513 - 2¹ = 13531155511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13531155511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 507081 + ... + 533097.

It is an arithmetic number, because the mean of its divisors is an integer number (1149267096).

Almost surely, 2^13531155513 is an apocalyptic number.

It is an amenable number.

13531155513 is a deficient number, since it is larger than the sum of its proper divisors (4857118023).

13531155513 is a wasteful number, since it uses less digits than its factorization.

13531155513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29344.

The product of its digits is 16875, while the sum is 33.

The spelling of 13531155513 in words is "thirteen billion, five hundred thirty-one million, one hundred fifty-five thousand, five hundred thirteen".