13044442231 has 2 divisors, whose sum is σ = 13044442232. Its totient is φ = 13044442230.

The previous prime is 13044442217. The next prime is 13044442247. The reversal of 13044442231 is 13224444031.

It is a weak prime.

It is an emirp because it is prime and its reverse (13224444031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13044442231 - 2⁵ = 13044442199 is a prime.

It is a super-2 number, since 2×13044442231² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13044442231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13044442531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6522221115 + 6522221116.

It is an arithmetic number, because the mean of its divisors is an integer number (6522221116).

Almost surely, 2^13044442231 is an apocalyptic number.

13044442231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13044442231 is an equidigital number, since it uses as much as digits as its factorization.

13044442231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 13044442231 its reverse (13224444031), we get a palindrome (26268886262).

The spelling of 13044442231 in words is "thirteen billion, forty-four million, four hundred forty-two thousand, two hundred thirty-one".