1320200443 has 2 divisors, whose sum is σ = 1320200444. Its totient is φ = 1320200442.

The previous prime is 1320200429. The next prime is 1320200449. The reversal of 1320200443 is 3440020231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1320200443 - 2¹⁷ = 1320069371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1320200443.

It is not a weakly prime, because it can be changed into another prime (1320200449) 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, 660100221 + 660100222.

It is an arithmetic number, because the mean of its divisors is an integer number (660100222).

Almost surely, 2^1320200443 is an apocalyptic number.

1320200443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320200443 is an equidigital number, since it uses as much as digits as its factorization.

1320200443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1320200443 is about 36334.5626504572. The cubic root of 1320200443 is about 1097.0168324783.

Adding to 1320200443 its reverse (3440020231), we get a palindrome (4760220674).

The spelling of 1320200443 in words is "one billion, three hundred twenty million, two hundred thousand, four hundred forty-three".