320144244401 has 4 divisors (see below), whose sum is σ = 321275496432. Its totient is φ = 319012992372.

The previous prime is 320144244391. The next prime is 320144244403. The reversal of 320144244401 is 104442441023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320144244401 - 2⁶ = 320144244337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320144244403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565625591 + ... + 565626156.

It is an arithmetic number, because the mean of its divisors is an integer number (80318874108).

Almost surely, 2^320144244401 is an apocalyptic number.

It is an amenable number.

320144244401 is a deficient number, since it is larger than the sum of its proper divisors (1131252031).

320144244401 is a wasteful number, since it uses less digits than its factorization.

320144244401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131252030.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 320144244401 its reverse (104442441023), we get a palindrome (424586685424).

The spelling of 320144244401 in words is "three hundred twenty billion, one hundred forty-four million, two hundred forty-four thousand, four hundred one".