321440444420441 has 8 divisors (see below), whose sum is σ = 321505580035584. Its totient is φ = 321375314911840.

The previous prime is 321440444420437. The next prime is 321440444420453. The reversal of 321440444420441 is 144024444044123.

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 321440444420441 - 2² = 321440444420437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321440444420471) 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, 104506256 + ... + 107538078.

It is an arithmetic number, because the mean of its divisors is an integer number (40188197504448).

Almost surely, 2^{321440444420441} is an apocalyptic number.

It is an amenable number.

321440444420441 is a deficient number, since it is larger than the sum of its proper divisors (65135615143).

321440444420441 is a wasteful number, since it uses less digits than its factorization.

321440444420441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053271.

The product of its (nonzero) digits is 786432, while the sum is 41.

Adding to 321440444420441 its reverse (144024444044123), we get a palindrome (465464888464564).

The spelling of 321440444420441 in words is "three hundred twenty-one trillion, four hundred forty billion, four hundred forty-four million, four hundred twenty thousand, four hundred forty-one".