444340100213 has 2 divisors, whose sum is σ = 444340100214. Its totient is φ = 444340100212.

The previous prime is 444340100203. The next prime is 444340100227. The reversal of 444340100213 is 312001043444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 415790253124 + 28549847089 = 644818^2 + 168967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444340100213 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444340100203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222170050106 + 222170050107.

It is an arithmetic number, because the mean of its divisors is an integer number (222170050107).

Almost surely, 2^444340100213 is an apocalyptic number.

It is an amenable number.

444340100213 is a deficient number, since it is larger than the sum of its proper divisors (1).

444340100213 is an equidigital number, since it uses as much as digits as its factorization.

444340100213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 444340100213 its reverse (312001043444), we get a palindrome (756341143657).

The spelling of 444340100213 in words is "four hundred forty-four billion, three hundred forty million, one hundred thousand, two hundred thirteen".