420010271 has 2 divisors, whose sum is σ = 420010272. Its totient is φ = 420010270.

The previous prime is 420010247. The next prime is 420010361. The reversal of 420010271 is 172010024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420010271 - 2¹⁴ = 419993887 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420010231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210005135 + 210005136.

It is an arithmetic number, because the mean of its divisors is an integer number (210005136).

Almost surely, 2^420010271 is an apocalyptic number.

420010271 is a deficient number, since it is larger than the sum of its proper divisors (1).

420010271 is an equidigital number, since it uses as much as digits as its factorization.

420010271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 420010271 is about 20494.1521171284. The cubic root of 420010271 is about 748.8933432918.

Adding to 420010271 its reverse (172010024), we get a palindrome (592020295).

The spelling of 420010271 in words is "four hundred twenty million, ten thousand, two hundred seventy-one".