13044442217 has 2 divisors, whose sum is σ = 13044442218. Its totient is φ = 13044442216.

The previous prime is 13044442199. The next prime is 13044442231. The reversal of 13044442217 is 71224444031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9847783696 + 3196658521 = 99236^2 + 56539^2 .

It is a cyclic number.

It is not a de Polignac number, because 13044442217 - 2²⁰ = 13043393641 is a prime.

It is a super-3 number, since 3×13044442217³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (13044442247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6522221108 + 6522221109.

It is an arithmetic number, because the mean of its divisors is an integer number (6522221109).

Almost surely, 2^13044442217 is an apocalyptic number.

It is an amenable number.

13044442217 is a deficient number, since it is larger than the sum of its proper divisors (1).

13044442217 is an equidigital number, since it uses as much as digits as its factorization.

13044442217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 32.

Adding to 13044442217 its reverse (71224444031), we get a palindrome (84268886248).

The spelling of 13044442217 in words is "thirteen billion, forty-four million, four hundred forty-two thousand, two hundred seventeen".