213223033 has 2 divisors, whose sum is σ = 213223034. Its totient is φ = 213223032.

The previous prime is 213223009. The next prime is 213223037. The reversal of 213223033 is 330322312.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211615209 + 1607824 = 14547^2 + 1268^2 .

It is a cyclic number.

It is not a de Polignac number, because 213223033 - 2⁹ = 213222521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213223033.

It is not a weakly prime, because it can be changed into another prime (213223037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106611516 + 106611517.

It is an arithmetic number, because the mean of its divisors is an integer number (106611517).

Almost surely, 2^213223033 is an apocalyptic number.

It is an amenable number.

213223033 is a deficient number, since it is larger than the sum of its proper divisors (1).

213223033 is an equidigital number, since it uses as much as digits as its factorization.

213223033 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 213223033 is about 14602.1585048239. The cubic root of 213223033 is about 597.4176358635.

Adding to 213223033 its reverse (330322312), we get a palindrome (543545345).

The spelling of 213223033 in words is "two hundred thirteen million, two hundred twenty-three thousand, thirty-three".