213030211 has 4 divisors (see below), whose sum is σ = 213059800. Its totient is φ = 213000624.

The previous prime is 213030203. The next prime is 213030229. The reversal of 213030211 is 112030312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 213030211 - 2³ = 213030203 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213030191 and 213030200.

It is not an unprimeable number, because it can be changed into a prime (213030011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3775 + ... + 20983.

It is an arithmetic number, because the mean of its divisors is an integer number (53264950).

Almost surely, 2^213030211 is an apocalyptic number.

213030211 is a deficient number, since it is larger than the sum of its proper divisors (29589).

213030211 is a wasteful number, since it uses less digits than its factorization.

213030211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29588.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 213030211 is about 14595.5544944343. The cubic root of 213030211 is about 597.2374958419.

Adding to 213030211 its reverse (112030312), we get a palindrome (325060523).

The spelling of 213030211 in words is "two hundred thirteen million, thirty thousand, two hundred eleven".