4021444311423 has 16 divisors (see below), whose sum is σ = 6684998336256. Its totient is φ = 2089061979840.

The previous prime is 4021444311419. The next prime is 4021444311473. The reversal of 4021444311423 is 3241134441204.

It is a happy number.

4021444311423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4021444311423 - 2² = 4021444311419 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021444311473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8704424686 + ... + 8704425147.

It is an arithmetic number, because the mean of its divisors is an integer number (417812396016).

Almost surely, 2^{4021444311423} is an apocalyptic number.

4021444311423 is a deficient number, since it is larger than the sum of its proper divisors (2663554024833).

4021444311423 is a wasteful number, since it uses less digits than its factorization.

4021444311423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17408849854.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 4021444311423 its reverse (3241134441204), we get a palindrome (7262578752627).

The spelling of 4021444311423 in words is "four trillion, twenty-one billion, four hundred forty-four million, three hundred eleven thousand, four hundred twenty-three".