4021443342423 has 12 divisors (see below), whose sum is σ = 6255578532840. Its totient is φ = 2474734364496.

The previous prime is 4021443342283. The next prime is 4021443342431. The reversal of 4021443342423 is 3242433441204.

4021443342423 is a `hidden beast` number, since 4 + 0 + 214 + 433 + 4 + 2 + 4 + 2 + 3 = 666.

It is not a de Polignac number, because 4021443342423 - 2³⁴ = 4004263473239 is a prime.

It is a super-4 number, since 4×4021443342423⁴ (a number of 52 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021443342463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17185655193 + ... + 17185655426.

It is an arithmetic number, because the mean of its divisors is an integer number (521298211070).

Almost surely, 2^{4021443342423} is an apocalyptic number.

4021443342423 is a deficient number, since it is larger than the sum of its proper divisors (2234135190417).

4021443342423 is a wasteful number, since it uses less digits than its factorization.

4021443342423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34371310638 (or 34371310635 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 4021443342423 its reverse (3242433441204), we get a palindrome (7263876783627).

The spelling of 4021443342423 in words is "four trillion, twenty-one billion, four hundred forty-three million, three hundred forty-two thousand, four hundred twenty-three".