420143211 has 6 divisors (see below), whose sum is σ = 606873540. Its totient is φ = 280095468.

The previous prime is 420143203. The next prime is 420143233. The reversal of 420143211 is 112341024.

It is not a de Polignac number, because 420143211 - 2³ = 420143203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420143201) 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 in 5 ways as a sum of consecutive naturals, for example, 23341281 + ... + 23341298.

It is an arithmetic number, because the mean of its divisors is an integer number (101145590).

Almost surely, 2^420143211 is an apocalyptic number.

420143211 is a deficient number, since it is larger than the sum of its proper divisors (186730329).

420143211 is a wasteful number, since it uses less digits than its factorization.

420143211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46682585 (or 46682582 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 420143211 is about 20497.3952247597. The cubic root of 420143211 is about 748.9723472161.

Adding to 420143211 its reverse (112341024), we get a palindrome (532484235).

The spelling of 420143211 in words is "four hundred twenty million, one hundred forty-three thousand, two hundred eleven".