420430211 has 2 divisors, whose sum is σ = 420430212. Its totient is φ = 420430210.

The previous prime is 420430201. The next prime is 420430249. The reversal of 420430211 is 112034024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420430211 - 2¹⁴ = 420413827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420430211.

It is not a weakly prime, because it can be changed into another prime (420430201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210215105 + 210215106.

It is an arithmetic number, because the mean of its divisors is an integer number (210215106).

Almost surely, 2^420430211 is an apocalyptic number.

420430211 is a deficient number, since it is larger than the sum of its proper divisors (1).

420430211 is an equidigital number, since it uses as much as digits as its factorization.

420430211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 420430211 is about 20504.3949191387. The cubic root of 420430211 is about 749.1428495046.

Adding to 420430211 its reverse (112034024), we get a palindrome (532464235).

The spelling of 420430211 in words is "four hundred twenty million, four hundred thirty thousand, two hundred eleven".