2163207271 has 2 divisors, whose sum is σ = 2163207272. Its totient is φ = 2163207270.

The previous prime is 2163207269. The next prime is 2163207283. The reversal of 2163207271 is 1727023612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2163207271 - 2¹ = 2163207269 is a prime.

Together with 2163207269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2163207971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081603635 + 1081603636.

It is an arithmetic number, because the mean of its divisors is an integer number (1081603636).

Almost surely, 2^2163207271 is an apocalyptic number.

2163207271 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163207271 is an equidigital number, since it uses as much as digits as its factorization.

2163207271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 2163207271 is about 46510.2920975562. The cubic root of 2163207271 is about 1293.3002990833.

The spelling of 2163207271 in words is "two billion, one hundred sixty-three million, two hundred seven thousand, two hundred seventy-one".