211333042 has 4 divisors (see below), whose sum is σ = 316999566. Its totient is φ = 105666520.

The previous prime is 211333021. The next prime is 211333043. The reversal of 211333042 is 240333112.

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., 200250801 + 11082241 = 14151^2 + 3329^2 .

It is not an unprimeable number, because it can be changed into a prime (211333043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52833259 + ... + 52833262.

Almost surely, 2^211333042 is an apocalyptic number.

211333042 is a deficient number, since it is larger than the sum of its proper divisors (105666524).

211333042 is a wasteful number, since it uses less digits than its factorization.

211333042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105666523.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 211333042 is about 14537.2983047057. The cubic root of 211333042 is about 595.6472414415.

Adding to 211333042 its reverse (240333112), we get a palindrome (451666154).

The spelling of 211333042 in words is "two hundred eleven million, three hundred thirty-three thousand, forty-two".