420304103 has 4 divisors (see below), whose sum is σ = 420948408. Its totient is φ = 419659800.

The previous prime is 420304099. The next prime is 420304123. The reversal of 420304103 is 301403024.

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 420304103 - 2² = 420304099 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 (420304123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321173 + ... + 322478.

It is an arithmetic number, because the mean of its divisors is an integer number (105237102).

Almost surely, 2^420304103 is an apocalyptic number.

420304103 is a deficient number, since it is larger than the sum of its proper divisors (644305).

420304103 is an equidigital number, since it uses as much as digits as its factorization.

420304103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644304.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 420304103 is about 20501.3195428977. The cubic root of 420304103 is about 749.0679402400.

Adding to 420304103 its reverse (301403024), we get a palindrome (721707127).

The spelling of 420304103 in words is "four hundred twenty million, three hundred four thousand, one hundred three".