420133211 has 2 divisors, whose sum is σ = 420133212. Its totient is φ = 420133210.

The previous prime is 420133201. The next prime is 420133213. The reversal of 420133211 is 112331024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420133211 - 2¹⁰ = 420132187 is a prime.

Together with 420133213, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420133211.

It is not a weakly prime, because it can be changed into another prime (420133213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210066605 + 210066606.

It is an arithmetic number, because the mean of its divisors is an integer number (210066606).

Almost surely, 2^420133211 is an apocalyptic number.

420133211 is a deficient number, since it is larger than the sum of its proper divisors (1).

420133211 is an equidigital number, since it uses as much as digits as its factorization.

420133211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 420133211 is about 20497.1512898744. The cubic root of 420133211 is about 748.9664049702.

Adding to 420133211 its reverse (112331024), we get a palindrome (532464235).

The spelling of 420133211 in words is "four hundred twenty million, one hundred thirty-three thousand, two hundred eleven".