420231100 has 18 divisors (see below), whose sum is σ = 911901704. Its totient is φ = 168092400.

The previous prime is 420231061. The next prime is 420231103. The reversal of 420231100 is 1132024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420231103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2101056 + ... + 2101255.

Almost surely, 2^420231100 is an apocalyptic number.

It is an amenable number.

420231100 is an abundant number, since it is smaller than the sum of its proper divisors (491670604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420231100 is a wasteful number, since it uses less digits than its factorization.

420231100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4202325 (or 4202318 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 420231100 is about 20499.5390192072. The cubic root of 420231100 is about 749.0245689661.

Adding to 420231100 its reverse (1132024), we get a palindrome (421363124).

The spelling of 420231100 in words is "four hundred twenty million, two hundred thirty-one thousand, one hundred".