144322223404321 has 4 divisors (see below), whose sum is σ = 144322355064132. Its totient is φ = 144322091744512.

The previous prime is 144322223404301. The next prime is 144322223404393. The reversal of 144322223404321 is 123404322223441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 88654747392225 + 55667476012096 = 9415665^2 + 7461064^2 .

It is a cyclic number.

It is not a de Polignac number, because 144322223404321 - 2²⁵ = 144322189849889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144322223404301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64171720 + ... + 66382633.

It is an arithmetic number, because the mean of its divisors is an integer number (36080588766033).

Almost surely, 2^{144322223404321} is an apocalyptic number.

It is an amenable number.

144322223404321 is a deficient number, since it is larger than the sum of its proper divisors (131659811).

144322223404321 is a wasteful number, since it uses less digits than its factorization.

144322223404321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131659810.

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 144322223404321 its reverse (123404322223441), we get a palindrome (267726545627762).

The spelling of 144322223404321 in words is "one hundred forty-four trillion, three hundred twenty-two billion, two hundred twenty-three million, four hundred four thousand, three hundred twenty-one".