4021442443243 has 4 divisors (see below), whose sum is σ = 4022654089360. Its totient is φ = 4020230797128.

The previous prime is 4021442443241. The next prime is 4021442443301. The reversal of 4021442443243 is 3423442441204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4021442443243 - 2¹ = 4021442443241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4021442443241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605818080 + ... + 605824717.

It is an arithmetic number, because the mean of its divisors is an integer number (1005663522340).

Almost surely, 2^{4021442443243} is an apocalyptic number.

4021442443243 is a deficient number, since it is larger than the sum of its proper divisors (1211646117).

4021442443243 is a wasteful number, since it uses less digits than its factorization.

4021442443243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211646116.

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

Adding to 4021442443243 its reverse (3423442441204), we get a palindrome (7444884884447).

The spelling of 4021442443243 in words is "four trillion, twenty-one billion, four hundred forty-two million, four hundred forty-three thousand, two hundred forty-three".