213134211 has 6 divisors (see below), whose sum is σ = 307860540. Its totient is φ = 142089468.

The previous prime is 213134189. The next prime is 213134227. The reversal of 213134211 is 112431312.

It is not a de Polignac number, because 213134211 - 2⁹ = 213133699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213134011) 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 5 ways as a sum of consecutive naturals, for example, 11840781 + ... + 11840798.

It is an arithmetic number, because the mean of its divisors is an integer number (51310090).

Almost surely, 2^213134211 is an apocalyptic number.

213134211 is a deficient number, since it is larger than the sum of its proper divisors (94726329).

213134211 is a wasteful number, since it uses less digits than its factorization.

213134211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23681585 (or 23681582 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 213134211 is about 14599.1167883540. The cubic root of 213134211 is about 597.3346692183.

Adding to 213134211 its reverse (112431312), we get a palindrome (325565523).

The spelling of 213134211 in words is "two hundred thirteen million, one hundred thirty-four thousand, two hundred eleven".