2143213571 has 2 divisors, whose sum is σ = 2143213572. Its totient is φ = 2143213570.

The previous prime is 2143213561. The next prime is 2143213601. The reversal of 2143213571 is 1753123412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2143213571 - 2⁶ = 2143213507 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2143213561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071606785 + 1071606786.

It is an arithmetic number, because the mean of its divisors is an integer number (1071606786).

Almost surely, 2^2143213571 is an apocalyptic number.

2143213571 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143213571 is an equidigital number, since it uses as much as digits as its factorization.

2143213571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 29.

The square root of 2143213571 is about 46294.8546925034. The cubic root of 2143213571 is about 1289.3034660919.

Adding to 2143213571 its reverse (1753123412), we get a palindrome (3896336983).

The spelling of 2143213571 in words is "two billion, one hundred forty-three million, two hundred thirteen thousand, five hundred seventy-one".