13231040239 has 16 divisors (see below), whose sum is σ = 13549311360. Its totient is φ = 12916431360.

The previous prime is 13231040227. The next prime is 13231040293. The reversal of 13231040239 is 93204013231.

It is a cyclic number.

It is not a de Polignac number, because 13231040239 - 2¹³ = 13231032047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231040639) 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, 4911777 + ... + 4914469.

It is an arithmetic number, because the mean of its divisors is an integer number (846831960).

Almost surely, 2^13231040239 is an apocalyptic number.

13231040239 is a deficient number, since it is larger than the sum of its proper divisors (318271121).

13231040239 is a wasteful number, since it uses less digits than its factorization.

13231040239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 13231040239 in words is "thirteen billion, two hundred thirty-one million, forty thousand, two hundred thirty-nine".