420102803 has 4 divisors (see below), whose sum is σ = 425420640. Its totient is φ = 414784968.

The previous prime is 420102743. The next prime is 420102821. The reversal of 420102803 is 308201024.

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 420102803 - 2¹⁰ = 420101779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420102853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2658800 + ... + 2658957.

It is an arithmetic number, because the mean of its divisors is an integer number (106355160).

Almost surely, 2^420102803 is an apocalyptic number.

420102803 is a deficient number, since it is larger than the sum of its proper divisors (5317837).

420102803 is an equidigital number, since it uses as much as digits as its factorization.

420102803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5317836.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 420102803 is about 20496.4095148394. The cubic root of 420102803 is about 748.9483352093.

Adding to 420102803 its reverse (308201024), we get a palindrome (728303827).

The spelling of 420102803 in words is "four hundred twenty million, one hundred two thousand, eight hundred three".