211300234 has 4 divisors (see below), whose sum is σ = 316950354. Its totient is φ = 105650116.

The previous prime is 211300231. The next prime is 211300267. The reversal of 211300234 is 432003112.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 202977009 + 8323225 = 14247^2 + 2885^2 .

It is not an unprimeable number, because it can be changed into a prime (211300231) 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 as a sum of consecutive naturals, namely, 52825057 + ... + 52825060.

Almost surely, 2^211300234 is an apocalyptic number.

211300234 is a deficient number, since it is larger than the sum of its proper divisors (105650120).

211300234 is a wasteful number, since it uses less digits than its factorization.

211300234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105650119.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 211300234 is about 14536.1698531628. The cubic root of 211300234 is about 595.6164164684.

Adding to 211300234 its reverse (432003112), we get a palindrome (643303346).

The spelling of 211300234 in words is "two hundred eleven million, three hundred thousand, two hundred thirty-four".