1000303263 has 10 divisors (see below), whose sum is σ = 1494280304. Its totient is φ = 666868788.

The previous prime is 1000303253. The next prime is 1000303313. The reversal of 1000303263 is 3623030001.

It is a happy number.

1000303263 is a `hidden beast` number, since 100 + 0 + 303 + 263 = 666.

It is not a de Polignac number, because 1000303263 - 2⁴ = 1000303247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000303223) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6174631 + ... + 6174792.

Almost surely, 2^1000303263 is an apocalyptic number.

1000303263 is a deficient number, since it is larger than the sum of its proper divisors (493977041).

1000303263 is an equidigital number, since it uses as much as digits as its factorization.

1000303263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12349435 (or 12349426 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1000303263 is about 31627.5712472520. The cubic root of 1000303263 is about 1000.1010774497.

Adding to 1000303263 its reverse (3623030001), we get a palindrome (4623333264).

The spelling of 1000303263 in words is "one billion, three hundred three thousand, two hundred sixty-three".