4423424304421 has 2 divisors, whose sum is σ = 4423424304422. Its totient is φ = 4423424304420.

The previous prime is 4423424304419. The next prime is 4423424304427. The reversal of 4423424304421 is 1244034243244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4079693030625 + 343731273796 = 2019825^2 + 586286^2 .

It is a cyclic number.

It is not a de Polignac number, because 4423424304421 - 2¹ = 4423424304419 is a prime.

Together with 4423424304419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4423424304427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2211712152210 + 2211712152211.

It is an arithmetic number, because the mean of its divisors is an integer number (2211712152211).

Almost surely, 2^{4423424304421} is an apocalyptic number.

It is an amenable number.

4423424304421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4423424304421 is an equidigital number, since it uses as much as digits as its factorization.

4423424304421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294912, while the sum is 37.

Adding to 4423424304421 its reverse (1244034243244), we get a palindrome (5667458547665).

The spelling of 4423424304421 in words is "four trillion, four hundred twenty-three billion, four hundred twenty-four million, three hundred four thousand, four hundred twenty-one".