13531002309 has 12 divisors (see below), whose sum is σ = 21321579552. Its totient is φ = 8200607400.

The previous prime is 13531002283. The next prime is 13531002319. The reversal of 13531002309 is 90320013531.

It is a happy number.

13531002309 is a `hidden beast` number, since 1 + 353 + 1 + 0 + 0 + 2 + 309 = 666.

It is not a de Polignac number, because 13531002309 - 2¹¹ = 13531000261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531002319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68338297 + ... + 68338494.

It is an arithmetic number, because the mean of its divisors is an integer number (1776798296).

Almost surely, 2^13531002309 is an apocalyptic number.

It is an amenable number.

13531002309 is a deficient number, since it is larger than the sum of its proper divisors (7790577243).

13531002309 is a wasteful number, since it uses less digits than its factorization.

13531002309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136676808 (or 136676805 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The spelling of 13531002309 in words is "thirteen billion, five hundred thirty-one million, two thousand, three hundred nine".