1344800321 has 2 divisors, whose sum is σ = 1344800322. Its totient is φ = 1344800320.

The previous prime is 1344800309. The next prime is 1344800381. The reversal of 1344800321 is 1230084431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1262807296 + 81993025 = 35536^2 + 9055^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344800321 - 2⁶ = 1344800257 is a prime.

It is not a weakly prime, because it can be changed into another prime (1344800381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672400160 + 672400161.

It is an arithmetic number, because the mean of its divisors is an integer number (672400161).

Almost surely, 2^1344800321 is an apocalyptic number.

It is an amenable number.

1344800321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344800321 is an equidigital number, since it uses as much as digits as its factorization.

1344800321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 1344800321 is about 36671.5192076903. The cubic root of 1344800321 is about 1103.7886771819.

Adding to 1344800321 its reverse (1230084431), we get a palindrome (2574884752).

The spelling of 1344800321 in words is "one billion, three hundred forty-four million, eight hundred thousand, three hundred twenty-one".