420222123 has 6 divisors (see below), whose sum is σ = 606987524. Its totient is φ = 280148076.

The previous prime is 420222119. The next prime is 420222137. The reversal of 420222123 is 321222024.

420222123 is a `hidden beast` number, since 420 + 2 + 221 + 23 = 666.

It is not a de Polignac number, because 420222123 - 2² = 420222119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420222096 and 420222105.

It is not an unprimeable number, because it can be changed into a prime (420222113) 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, 23345665 + ... + 23345682.

Almost surely, 2^420222123 is an apocalyptic number.

420222123 is a deficient number, since it is larger than the sum of its proper divisors (186765401).

420222123 is a wasteful number, since it uses less digits than its factorization.

420222123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46691353 (or 46691350 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 420222123 is about 20499.3200618947. The cubic root of 420222123 is about 749.0192353600.

Adding to 420222123 its reverse (321222024), we get a palindrome (741444147).

Subtracting from 420222123 its reverse (321222024), we obtain a palindrome (99000099).

The spelling of 420222123 in words is "four hundred twenty million, two hundred twenty-two thousand, one hundred twenty-three".