420024211 has 2 divisors, whose sum is σ = 420024212. Its totient is φ = 420024210.

The previous prime is 420024193. The next prime is 420024217. The reversal of 420024211 is 112420024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420024211 - 2¹⁷ = 419893139 is a prime.

It is not a weakly prime, because it can be changed into another prime (420024217) 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 as a sum of consecutive naturals, namely, 210012105 + 210012106.

It is an arithmetic number, because the mean of its divisors is an integer number (210012106).

Almost surely, 2^420024211 is an apocalyptic number.

420024211 is a deficient number, since it is larger than the sum of its proper divisors (1).

420024211 is an equidigital number, since it uses as much as digits as its factorization.

420024211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 420024211 is about 20494.4922113235. The cubic root of 420024211 is about 748.9016283731.

Adding to 420024211 its reverse (112420024), we get a palindrome (532444235).

The spelling of 420024211 in words is "four hundred twenty million, twenty-four thousand, two hundred eleven".