344313443921 has 2 divisors, whose sum is σ = 344313443922. Its totient is φ = 344313443920.

The previous prime is 344313443911. The next prime is 344313444011. The reversal of 344313443921 is 129344313443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 233807063296 + 110506380625 = 483536^2 + 332425^2 .

It is a cyclic number.

It is not a de Polignac number, because 344313443921 - 2¹⁰ = 344313442897 is a prime.

It is a super-2 number, since 2×344313443921² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (344313443911) 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 as a sum of consecutive naturals, namely, 172156721960 + 172156721961.

It is an arithmetic number, because the mean of its divisors is an integer number (172156721961).

Almost surely, 2^344313443921 is an apocalyptic number.

It is an amenable number.

344313443921 is a deficient number, since it is larger than the sum of its proper divisors (1).

344313443921 is an equidigital number, since it uses as much as digits as its factorization.

344313443921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 41.

The spelling of 344313443921 in words is "three hundred forty-four billion, three hundred thirteen million, four hundred forty-three thousand, nine hundred twenty-one".