422434012321 has 2 divisors, whose sum is σ = 422434012322. Its totient is φ = 422434012320.

The previous prime is 422434012309. The next prime is 422434012423. The reversal of 422434012321 is 123210434224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411861031696 + 10572980625 = 641764^2 + 102825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422434012321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422434012321.

It is not a weakly prime, because it can be changed into another prime (422434012921) 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, 211217006160 + 211217006161.

It is an arithmetic number, because the mean of its divisors is an integer number (211217006161).

Almost surely, 2^422434012321 is an apocalyptic number.

It is an amenable number.

422434012321 is a deficient number, since it is larger than the sum of its proper divisors (1).

422434012321 is an equidigital number, since it uses as much as digits as its factorization.

422434012321 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 422434012321 its reverse (123210434224), we get a palindrome (545644446545).

The spelling of 422434012321 in words is "four hundred twenty-two billion, four hundred thirty-four million, twelve thousand, three hundred twenty-one".