344033320321 has 16 divisors (see below), whose sum is σ = 365512507200. Its totient is φ = 322903983168.

The previous prime is 344033320277. The next prime is 344033320343. The reversal of 344033320321 is 123023330443.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 344033320321 - 2⁹ = 344033319809 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 344033320321.

It is not an unprimeable number, because it can be changed into a prime (344033320721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 806535 + ... + 1156963.

It is an arithmetic number, because the mean of its divisors is an integer number (22844531700).

Almost surely, 2^344033320321 is an apocalyptic number.

It is an amenable number.

344033320321 is a deficient number, since it is larger than the sum of its proper divisors (21479186879).

344033320321 is a wasteful number, since it uses less digits than its factorization.

344033320321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350928.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 344033320321 its reverse (123023330443), we get a palindrome (467056650764).

The spelling of 344033320321 in words is "three hundred forty-four billion, thirty-three million, three hundred twenty thousand, three hundred twenty-one".