1000303 has 2 divisors, whose sum is σ = 1000304. Its totient is φ = 1000302.

The previous prime is 1000291. The next prime is 1000313. The reversal of 1000303 is 3030001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000303 - 2¹³ = 992111 is a prime.

1000303 is a modest number, since divided by 303 gives 100 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500151 + 500152.

It is an arithmetic number, because the mean of its divisors is an integer number (500152).

2^1000303 is an apocalyptic number.

1000303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000303 is an equidigital number, since it uses as much as digits as its factorization.

1000303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9, while the sum is 7.

The square root of 1000303 is about 1000.1514885256. The cubic root of 1000303 is about 100.0100989801.

Adding to 1000303 its reverse (3030001), we get a palindrome (4030304).

The spelling of 1000303 in words is "one million, three hundred three", and thus it is an aban number.