2213043817 has 2 divisors, whose sum is σ = 2213043818. Its totient is φ = 2213043816.

The previous prime is 2213043809. The next prime is 2213043821. The reversal of 2213043817 is 7183403122.

2213043817 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 can be written as a sum of positive squares in only one way, i.e., 1892598016 + 320445801 = 43504^2 + 17901^2 .

It is a cyclic number.

It is not a de Polignac number, because 2213043817 - 2³ = 2213043809 is a prime.

It is not a weakly prime, because it can be changed into another prime (2213043317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106521908 + 1106521909.

It is an arithmetic number, because the mean of its divisors is an integer number (1106521909).

Almost surely, 2^2213043817 is an apocalyptic number.

It is an amenable number.

2213043817 is a deficient number, since it is larger than the sum of its proper divisors (1).

2213043817 is an equidigital number, since it uses as much as digits as its factorization.

2213043817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 2213043817 is about 47042.9996598856. Note that the first 3 decimals coincide. The cubic root of 2213043817 is about 1303.1567891131.

Adding to 2213043817 its reverse (7183403122), we get a palindrome (9396446939).

The spelling of 2213043817 in words is "two billion, two hundred thirteen million, forty-three thousand, eight hundred seventeen".