420271203 has 64 divisors (see below), whose sum is σ = 679403520. Its totient is φ = 228096000.

The previous prime is 420271199. The next prime is 420271211. The reversal of 420271203 is 302172024.

It is not a de Polignac number, because 420271203 - 2² = 420271199 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420271203.

It is not an unprimeable number, because it can be changed into a prime (420271253) 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 63 ways as a sum of consecutive naturals, for example, 2177475 + ... + 2177667.

It is an arithmetic number, because the mean of its divisors is an integer number (10615680).

Almost surely, 2^420271203 is an apocalyptic number.

420271203 is a deficient number, since it is larger than the sum of its proper divisors (259132317).

420271203 is a wasteful number, since it uses less digits than its factorization.

420271203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 420271203 is about 20500.5171398187. The cubic root of 420271203 is about 749.0483948854.

The spelling of 420271203 in words is "four hundred twenty million, two hundred seventy-one thousand, two hundred three".