4021444133723 has 2 divisors, whose sum is σ = 4021444133724. Its totient is φ = 4021444133722.

The previous prime is 4021444133699. The next prime is 4021444133801. The reversal of 4021444133723 is 3273314441204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4021444133723 - 2¹⁸ = 4021443871579 is a prime.

It is not a weakly prime, because it can be changed into another prime (4021444130723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010722066861 + 2010722066862.

It is an arithmetic number, because the mean of its divisors is an integer number (2010722066862).

Almost surely, 2^{4021444133723} is an apocalyptic number.

4021444133723 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021444133723 is an equidigital number, since it uses as much as digits as its factorization.

4021444133723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 38.

Adding to 4021444133723 its reverse (3273314441204), we get a palindrome (7294758574927).

The spelling of 4021444133723 in words is "four trillion, twenty-one billion, four hundred forty-four million, one hundred thirty-three thousand, seven hundred twenty-three".