213022303 has 6 divisors (see below), whose sum is σ = 230669304. Its totient is φ = 196635816.

The previous prime is 213022253. The next prime is 213022321. The reversal of 213022303 is 303220312.

It is a de Polignac number, because none of the positive numbers 2^k-213022303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213022363) 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 in 5 ways as a sum of consecutive naturals, for example, 630075 + ... + 630412.

It is an arithmetic number, because the mean of its divisors is an integer number (38444884).

Almost surely, 2^213022303 is an apocalyptic number.

213022303 is a deficient number, since it is larger than the sum of its proper divisors (17647001).

213022303 is a wasteful number, since it uses less digits than its factorization.

213022303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260513 (or 1260500 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 213022303 is about 14595.2835875155. The cubic root of 213022303 is about 597.2301056341.

Adding to 213022303 its reverse (303220312), we get a palindrome (516242615).

The spelling of 213022303 in words is "two hundred thirteen million, twenty-two thousand, three hundred three".