443442312243013 has 2 divisors, whose sum is σ = 443442312243014. Its totient is φ = 443442312243012.

The previous prime is 443442312242989. The next prime is 443442312243121. The reversal of 443442312243013 is 310342213244344.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339932076939009 + 103510235304004 = 18437247^2 + 10173998^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-443442312243013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443442312241013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221721156121506 + 221721156121507.

It is an arithmetic number, because the mean of its divisors is an integer number (221721156121507).

Almost surely, 2^{443442312243013} is an apocalyptic number.

It is an amenable number.

443442312243013 is a deficient number, since it is larger than the sum of its proper divisors (1).

443442312243013 is an equidigital number, since it uses as much as digits as its factorization.

443442312243013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 663552, while the sum is 40.

Adding to 443442312243013 its reverse (310342213244344), we get a palindrome (753784525487357).

The spelling of 443442312243013 in words is "four hundred forty-three trillion, four hundred forty-two billion, three hundred twelve million, two hundred forty-three thousand, thirteen".