420210203 has 16 divisors (see below), whose sum is σ = 497664000. Its totient is φ = 347155872.

The previous prime is 420210187. The next prime is 420210223. The reversal of 420210203 is 302012024.

It is not a de Polignac number, because 420210203 - 2⁴ = 420210187 is a prime.

It is a super-2 number, since 2×420210203² = 353153229410602418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420210223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144518 + ... + 147396.

It is an arithmetic number, because the mean of its divisors is an integer number (31104000).

Almost surely, 2^420210203 is an apocalyptic number.

420210203 is a deficient number, since it is larger than the sum of its proper divisors (77453797).

420210203 is a wasteful number, since it uses less digits than its factorization.

420210203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3634.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 420210203 is about 20499.0293184824. The cubic root of 420210203 is about 749.0121530788.

Adding to 420210203 its reverse (302012024), we get a palindrome (722222227).

The spelling of 420210203 in words is "four hundred twenty million, two hundred ten thousand, two hundred three".