630323203 has 4 divisors (see below), whose sum is σ = 639731080. Its totient is φ = 620915328.

The previous prime is 630323189. The next prime is 630323273. The reversal of 630323203 is 302323036.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 630323203 - 2¹⁷ = 630192131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (630323273) 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 in 3 ways as a sum of consecutive naturals, for example, 4703838 + ... + 4703971.

It is an arithmetic number, because the mean of its divisors is an integer number (159932770).

Almost surely, 2^630323203 is an apocalyptic number.

630323203 is a deficient number, since it is larger than the sum of its proper divisors (9407877).

630323203 is an equidigital number, since it uses as much as digits as its factorization.

630323203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9407876.

The product of its (nonzero) digits is 1944, while the sum is 22.

The square root of 630323203 is about 25106.2383283518. The cubic root of 630323203 is about 857.4084608487.

Adding to 630323203 its reverse (302323036), we get a palindrome (932646239).

The spelling of 630323203 in words is "six hundred thirty million, three hundred twenty-three thousand, two hundred three".