144320324423443 has 4 divisors (see below), whose sum is σ = 164937513626800. Its totient is φ = 123703135220088.

The previous prime is 144320324423383. The next prime is 144320324423477. The reversal of 144320324423443 is 344324423023441.

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

It is a cyclic number.

It is not a de Polignac number, because 144320324423443 - 2²¹ = 144320322326291 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144320324423443.

It is not an unprimeable number, because it can be changed into a prime (144320324433443) 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, 10308594601668 + ... + 10308594601681.

It is an arithmetic number, because the mean of its divisors is an integer number (41234378406700).

Almost surely, 2^{144320324423443} is an apocalyptic number.

144320324423443 is a deficient number, since it is larger than the sum of its proper divisors (20617189203357).

144320324423443 is an equidigital number, since it uses as much as digits as its factorization.

144320324423443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20617189203356.

The product of its (nonzero) digits is 2654208, while the sum is 43.

Adding to 144320324423443 its reverse (344324423023441), we get a palindrome (488644747446884).

The spelling of 144320324423443 in words is "one hundred forty-four trillion, three hundred twenty billion, three hundred twenty-four million, four hundred twenty-three thousand, four hundred forty-three".