4021440002321 has 12 divisors (see below), whose sum is σ = 4678393487040. Its totient is φ = 3446659840680.

The previous prime is 4021440002309. The next prime is 4021440002351. The reversal of 4021440002321 is 1232000441204.

It is not a de Polignac number, because 4021440002321 - 2¹⁰ = 4021440001297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4021440002351) 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, 2845325 + ... + 4017306.

It is an arithmetic number, because the mean of its divisors is an integer number (389866123920).

Almost surely, 2^{4021440002321} is an apocalyptic number.

It is an amenable number.

4021440002321 is a deficient number, since it is larger than the sum of its proper divisors (656953484719).

4021440002321 is a wasteful number, since it uses less digits than its factorization.

4021440002321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6874604 (or 6874597 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 4021440002321 its reverse (1232000441204), we get a palindrome (5253440443525).

The spelling of 4021440002321 in words is "four trillion, twenty-one billion, four hundred forty million, two thousand, three hundred twenty-one".