420120411211 has 2 divisors, whose sum is σ = 420120411212. Its totient is φ = 420120411210.

The previous prime is 420120411209. The next prime is 420120411241. The reversal of 420120411211 is 112114021024.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420120411211 - 2¹ = 420120411209 is a prime.

Together with 420120411209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (420120411241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210060205605 + 210060205606.

It is an arithmetic number, because the mean of its divisors is an integer number (210060205606).

Almost surely, 2^420120411211 is an apocalyptic number.

420120411211 is a deficient number, since it is larger than the sum of its proper divisors (1).

420120411211 is an equidigital number, since it uses as much as digits as its factorization.

420120411211 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 19.

Adding to 420120411211 its reverse (112114021024), we get a palindrome (532234432235).

The spelling of 420120411211 in words is "four hundred twenty billion, one hundred twenty million, four hundred eleven thousand, two hundred eleven".