420215103 has 48 divisors (see below), whose sum is σ = 758774016. Its totient is φ = 217710720.

The previous prime is 420215099. The next prime is 420215149. The reversal of 420215103 is 301512024.

It is not a de Polignac number, because 420215103 - 2² = 420215099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420215183) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 406275 + ... + 407307.

It is an arithmetic number, because the mean of its divisors is an integer number (15807792).

Almost surely, 2^420215103 is an apocalyptic number.

420215103 is a deficient number, since it is larger than the sum of its proper divisors (338558913).

420215103 is a wasteful number, since it uses less digits than its factorization.

420215103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644 (or 1641 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 420215103 is about 20499.1488359883. The cubic root of 420215103 is about 749.0150644355.

Adding to 420215103 its reverse (301512024), we get a palindrome (721727127).

The spelling of 420215103 in words is "four hundred twenty million, two hundred fifteen thousand, one hundred three".