13231440163 has 8 divisors (see below), whose sum is σ = 13476380400. Its totient is φ = 12988639488.

The previous prime is 13231440139. The next prime is 13231440281. The reversal of 13231440163 is 36104413231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13231440163 - 2¹³ = 13231431971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13231440113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522406 + ... + 547147.

It is an arithmetic number, because the mean of its divisors is an integer number (1684547550).

Almost surely, 2^13231440163 is an apocalyptic number.

13231440163 is a deficient number, since it is larger than the sum of its proper divisors (244940237).

13231440163 is a wasteful number, since it uses less digits than its factorization.

13231440163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069781.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 13231440163 its reverse (36104413231), we get a palindrome (49335853394).

The spelling of 13231440163 in words is "thirteen billion, two hundred thirty-one million, four hundred forty thousand, one hundred sixty-three".