213223303273 has 2 divisors, whose sum is σ = 213223303274. Its totient is φ = 213223303272.

The previous prime is 213223303133. The next prime is 213223303303. The reversal of 213223303273 is 372303322312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163513479424 + 49709823849 = 404368^2 + 222957^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213223303273 is a prime.

It is not a weakly prime, because it can be changed into another prime (213223303373) 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, 106611651636 + 106611651637.

It is an arithmetic number, because the mean of its divisors is an integer number (106611651637).

Almost surely, 2^213223303273 is an apocalyptic number.

It is an amenable number.

213223303273 is a deficient number, since it is larger than the sum of its proper divisors (1).

213223303273 is an equidigital number, since it uses as much as digits as its factorization.

213223303273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 31.

Adding to 213223303273 its reverse (372303322312), we get a palindrome (585526625585).

The spelling of 213223303273 in words is "two hundred thirteen billion, two hundred twenty-three million, three hundred three thousand, two hundred seventy-three".