213223303 has 2 divisors, whose sum is σ = 213223304. Its totient is φ = 213223302.

The previous prime is 213223289. The next prime is 213223313. The reversal of 213223303 is 303322312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213223303 - 2⁹ = 213222791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213223313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106611651 + 106611652.

It is an arithmetic number, because the mean of its divisors is an integer number (106611652).

Almost surely, 2^213223303 is an apocalyptic number.

213223303 is a deficient number, since it is larger than the sum of its proper divisors (1).

213223303 is an equidigital number, since it uses as much as digits as its factorization.

213223303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 213223303 is about 14602.1677500294. The cubic root of 213223303 is about 597.4178880294.

Adding to 213223303 its reverse (303322312), we get a palindrome (516545615).

Subtracting 213223303 from its reverse (303322312), we obtain a palindrome (90099009).

The spelling of 213223303 in words is "two hundred thirteen million, two hundred twenty-three thousand, three hundred three".