4021443343213 has 8 divisors (see below), whose sum is σ = 4027056468120. Its totient is φ = 4015831959360.

The previous prime is 4021443343207. The next prime is 4021443343223. The reversal of 4021443343213 is 3123433441204.

It can be written as a sum of positive squares in 4 ways, for example, as 742109885764 + 3279333457449 = 861458^2 + 1810893^2 .

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 4021443343213 - 2¹⁷ = 4021443212141 is a prime.

It is a super-4 number, since 4×4021443343213⁴ (a number of 52 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021443343223) 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, 4222231 + ... + 5086267.

It is an arithmetic number, because the mean of its divisors is an integer number (503382058515).

Almost surely, 2^{4021443343213} is an apocalyptic number.

It is an amenable number.

4021443343213 is a deficient number, since it is larger than the sum of its proper divisors (5613124907).

4021443343213 is an equidigital number, since it uses as much as digits as its factorization.

4021443343213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870527.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 4021443343213 its reverse (3123433441204), we get a palindrome (7144876784417).

The spelling of 4021443343213 in words is "four trillion, twenty-one billion, four hundred forty-three million, three hundred forty-three thousand, two hundred thirteen".