4021444442323 has 16 divisors (see below), whose sum is σ = 5120424428544. Its totient is φ = 3066920876160.

The previous prime is 4021444442303. The next prime is 4021444442341. The reversal of 4021444442323 is 3232444441204.

It is a cyclic number.

It is not a de Polignac number, because 4021444442323 - 2⁴¹ = 1822421186771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021444442303) 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 in 15 ways as a sum of consecutive naturals, for example, 555597990 + ... + 555605227.

It is an arithmetic number, because the mean of its divisors is an integer number (320026526784).

Almost surely, 2^{4021444442323} is an apocalyptic number.

4021444442323 is a deficient number, since it is larger than the sum of its proper divisors (1098979986221).

4021444442323 is a wasteful number, since it uses less digits than its factorization.

4021444442323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111203282.

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

Adding to 4021444442323 its reverse (3232444441204), we get a palindrome (7253888883527).

The spelling of 4021444442323 in words is "four trillion, twenty-one billion, four hundred forty-four million, four hundred forty-two thousand, three hundred twenty-three".