421303 has 2 divisors, whose sum is σ = 421304. Its totient is φ = 421302.

The previous prime is 421279. The next prime is 421313. The reversal of 421303 is 303124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421303 - 2¹³ = 413111 is a prime.

It is a plaindrome in base 8 and base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421313) 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, 210651 + 210652.

It is an arithmetic number, because the mean of its divisors is an integer number (210652).

2⁴²¹³⁰³ is an apocalyptic number.

421303 is a deficient number, since it is larger than the sum of its proper divisors (1).

421303 is an equidigital number, since it uses as much as digits as its factorization.

421303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 421303 is about 649.0785776776. The cubic root of 421303 is about 74.9660883727.

Adding to 421303 its reverse (303124), we get a palindrome (724427).

The spelling of 421303 in words is "four hundred twenty-one thousand, three hundred three", and thus it is an iban number.