420134303 has 4 divisors (see below), whose sum is σ = 420178608. Its totient is φ = 420090000.

The previous prime is 420134291. The next prime is 420134317. The reversal of 420134303 is 303431024.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 420134303 - 2⁸ = 420134047 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 (420130303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1526 + ... + 29027.

It is an arithmetic number, because the mean of its divisors is an integer number (105044652).

Almost surely, 2^420134303 is an apocalyptic number.

420134303 is a deficient number, since it is larger than the sum of its proper divisors (44305).

420134303 is a wasteful number, since it uses less digits than its factorization.

420134303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44304.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 420134303 is about 20497.1779277051. The cubic root of 420134303 is about 748.9670538680.

Adding to 420134303 its reverse (303431024), we get a palindrome (723565327).

The spelling of 420134303 in words is "four hundred twenty million, one hundred thirty-four thousand, three hundred three".