4021424321443 has 8 divisors (see below), whose sum is σ = 4084626840768. Its totient is φ = 3958315368744.

The previous prime is 4021424321441. The next prime is 4021424321449. The reversal of 4021424321443 is 3441234241204.

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 4021424321443 - 2¹ = 4021424321441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4021424321399 and 4021424321408.

It is not an unprimeable number, because it can be changed into a prime (4021424321441) 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, 23305021 + ... + 23476942.

It is an arithmetic number, because the mean of its divisors is an integer number (510578355096).

Almost surely, 2^{4021424321443} is an apocalyptic number.

4021424321443 is a deficient number, since it is larger than the sum of its proper divisors (63202519325).

4021424321443 is a wasteful number, since it uses less digits than its factorization.

4021424321443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46783313.

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 4021424321443 its reverse (3441234241204), we get a palindrome (7462658562647).

The spelling of 4021424321443 in words is "four trillion, twenty-one billion, four hundred twenty-four million, three hundred twenty-one thousand, four hundred forty-three".