1002004243 has 2 divisors, whose sum is σ = 1002004244. Its totient is φ = 1002004242.

The previous prime is 1002004181. The next prime is 1002004247. The reversal of 1002004243 is 3424002001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002004243 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002004247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501002121 + 501002122.

It is an arithmetic number, because the mean of its divisors is an integer number (501002122).

Almost surely, 2^1002004243 is an apocalyptic number.

1002004243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002004243 is an equidigital number, since it uses as much as digits as its factorization.

1002004243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1002004243 is about 31654.4506033512. The cubic root of 1002004243 is about 1000.6676351641.

Adding to 1002004243 its reverse (3424002001), we get a palindrome (4426006244).

The spelling of 1002004243 in words is "one billion, two million, four thousand, two hundred forty-three".