344304313321 has 4 divisors (see below), whose sum is σ = 344383340932. Its totient is φ = 344225285712.

The previous prime is 344304313303. The next prime is 344304313373. The reversal of 344304313321 is 123313403443.

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 178138020096 + 166166293225 = 422064^2 + 407635^2 .

It is a cyclic number.

It is not a de Polignac number, because 344304313321 - 2⁹ = 344304312809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344304313621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39507270 + ... + 39515983.

It is an arithmetic number, because the mean of its divisors is an integer number (86095835233).

Almost surely, 2^344304313321 is an apocalyptic number.

It is an amenable number.

344304313321 is a deficient number, since it is larger than the sum of its proper divisors (79027611).

344304313321 is an equidigital number, since it uses as much as digits as its factorization.

344304313321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79027610.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 344304313321 its reverse (123313403443), we get a palindrome (467617716764).

The spelling of 344304313321 in words is "three hundred forty-four billion, three hundred four million, three hundred thirteen thousand, three hundred twenty-one".