2163420071 has 2 divisors, whose sum is σ = 2163420072. Its totient is φ = 2163420070.

The previous prime is 2163420041. The next prime is 2163420079. The reversal of 2163420071 is 1700243612.

2163420071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2163420071 - 2¹⁴ = 2163403687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2163420071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2163420079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081710035 + 1081710036.

It is an arithmetic number, because the mean of its divisors is an integer number (1081710036).

Almost surely, 2^2163420071 is an apocalyptic number.

2163420071 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163420071 is an equidigital number, since it uses as much as digits as its factorization.

2163420071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 2163420071 is about 46512.5797069997. The cubic root of 2163420071 is about 1293.3427060660.

Adding to 2163420071 its reverse (1700243612), we get a palindrome (3863663683).

The spelling of 2163420071 in words is "two billion, one hundred sixty-three million, four hundred twenty thousand, seventy-one".