4444001143321 has 16 divisors (see below), whose sum is σ = 4633906636800. Its totient is φ = 4257202109760.

The previous prime is 4444001143313. The next prime is 4444001143409. The reversal of 4444001143321 is 1233411004444.

It is not a de Polignac number, because 4444001143321 - 2³ = 4444001143313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4444001143921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288465 + ... + 2995198.

It is an arithmetic number, because the mean of its divisors is an integer number (289619164800).

Almost surely, 2^{4444001143321} is an apocalyptic number.

It is an amenable number.

4444001143321 is a deficient number, since it is larger than the sum of its proper divisors (189905493479).

4444001143321 is a wasteful number, since it uses less digits than its factorization.

4444001143321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284136.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 4444001143321 its reverse (1233411004444), we get a palindrome (5677412147765).

The spelling of 4444001143321 in words is "four trillion, four hundred forty-four billion, one million, one hundred forty-three thousand, three hundred twenty-one".