421302303 has 40 divisors (see below), whose sum is σ = 644688000. Its totient is φ = 274100112.

The previous prime is 421302283. The next prime is 421302317. The reversal of 421302303 is 303203124.

It is not a de Polignac number, because 421302303 - 2⁸ = 421302047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421302103) 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 39 ways as a sum of consecutive naturals, for example, 950800 + ... + 951242.

It is an arithmetic number, because the mean of its divisors is an integer number (16117200).

Almost surely, 2^421302303 is an apocalyptic number.

421302303 is a deficient number, since it is larger than the sum of its proper divisors (223385697).

421302303 is a wasteful number, since it uses less digits than its factorization.

421302303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 421302303 is about 20525.6498800891. The cubic root of 421302303 is about 749.6604703160.

Adding to 421302303 its reverse (303203124), we get a palindrome (724505427).

The spelling of 421302303 in words is "four hundred twenty-one million, three hundred two thousand, three hundred three".