42444200213 has 2 divisors, whose sum is σ = 42444200214. Its totient is φ = 42444200212.

The previous prime is 42444200191. The next prime is 42444200261. The reversal of 42444200213 is 31200244424.

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., 25140639364 + 17303560849 = 158558^2 + 131543^2 .

It is a cyclic number.

It is not a de Polignac number, because 42444200213 - 2²⁶ = 42377091349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42444200413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21222100106 + 21222100107.

It is an arithmetic number, because the mean of its divisors is an integer number (21222100107).

Almost surely, 2^42444200213 is an apocalyptic number.

It is an amenable number.

42444200213 is a deficient number, since it is larger than the sum of its proper divisors (1).

42444200213 is an equidigital number, since it uses as much as digits as its factorization.

42444200213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 42444200213 its reverse (31200244424), we get a palindrome (73644444637).

The spelling of 42444200213 in words is "forty-two billion, four hundred forty-four million, two hundred thousand, two hundred thirteen".