211133234 has 16 divisors (see below), whose sum is σ = 361124568. Its totient is φ = 91713792.

The previous prime is 211133213. The next prime is 211133249. The reversal of 211133234 is 432331112.

It can be written as a sum of positive squares in 4 ways, for example, as 210163009 + 970225 = 14497^2 + 985^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 238397 + ... + 239280.

Almost surely, 2^211133234 is an apocalyptic number.

211133234 is a deficient number, since it is larger than the sum of its proper divisors (149991334).

211133234 is a wasteful number, since it uses less digits than its factorization.

211133234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477709.

The product of its digits is 432, while the sum is 20.

The square root of 211133234 is about 14530.4244260104. The cubic root of 211133234 is about 595.4594610377.

Adding to 211133234 its reverse (432331112), we get a palindrome (643464346).

The spelling of 211133234 in words is "two hundred eleven million, one hundred thirty-three thousand, two hundred thirty-four".