4440021011321 has 8 divisors (see below), whose sum is σ = 5081232393024. Its totient is φ = 3800540296080.

The previous prime is 4440021011263. The next prime is 4440021011329. The reversal of 4440021011321 is 1231101200444.

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 4440021011321 - 2³⁸ = 4165143104377 is a prime.

It is a super-2 number, since 2×4440021011321² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4440021011329) 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, 432661115 + ... + 432671376.

It is an arithmetic number, because the mean of its divisors is an integer number (635154049128).

Almost surely, 2^{4440021011321} is an apocalyptic number.

It is an amenable number.

4440021011321 is a deficient number, since it is larger than the sum of its proper divisors (641211381703).

4440021011321 is an equidigital number, since it uses as much as digits as its factorization.

4440021011321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865333231.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 4440021011321 its reverse (1231101200444), we get a palindrome (5671122211765).

The spelling of 4440021011321 in words is "four trillion, four hundred forty billion, twenty-one million, eleven thousand, three hundred twenty-one".