213203323 has 2 divisors, whose sum is σ = 213203324. Its totient is φ = 213203322.

The previous prime is 213203293. The next prime is 213203359. The reversal of 213203323 is 323302312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213203323 - 2¹³ = 213195131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213203323.

It is not a weakly prime, because it can be changed into another prime (213203363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106601661 + 106601662.

It is an arithmetic number, because the mean of its divisors is an integer number (106601662).

Almost surely, 2^213203323 is an apocalyptic number.

213203323 is a deficient number, since it is larger than the sum of its proper divisors (1).

213203323 is an equidigital number, since it uses as much as digits as its factorization.

213203323 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 213203323 is about 14601.4835890056. The cubic root of 213203323 is about 597.3992271824.

Adding to 213203323 its reverse (323302312), we get a palindrome (536505635).

The spelling of 213203323 in words is "two hundred thirteen million, two hundred three thousand, three hundred twenty-three".