4021444133423 has 8 divisors (see below), whose sum is σ = 4042625479200. Its totient is φ = 4000272518880.

The previous prime is 4021444133341. The next prime is 4021444133489. The reversal of 4021444133423 is 3243314441204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4021444133423 - 2²⁸ = 4021175697967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021444133723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1603388 + ... + 3257873.

It is an arithmetic number, because the mean of its divisors is an integer number (505328184900).

Almost surely, 2^{4021444133423} is an apocalyptic number.

4021444133423 is a deficient number, since it is larger than the sum of its proper divisors (21181345777).

4021444133423 is a wasteful number, since it uses less digits than its factorization.

4021444133423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4865617.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 4021444133423 its reverse (3243314441204), we get a palindrome (7264758574627).

The spelling of 4021444133423 in words is "four trillion, twenty-one billion, four hundred forty-four million, one hundred thirty-three thousand, four hundred twenty-three".