211111042 has 8 divisors (see below), whose sum is σ = 317273616. Its totient is φ = 105353172.

The previous prime is 211111013. The next prime is 211111051. The reversal of 211111042 is 240111112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99868 + ... + 101959.

It is an arithmetic number, because the mean of its divisors is an integer number (39659202).

Almost surely, 2^211111042 is an apocalyptic number.

211111042 is a deficient number, since it is larger than the sum of its proper divisors (106162574).

211111042 is a wasteful number, since it uses less digits than its factorization.

211111042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202352.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 211111042 is about 14529.6607668589. The cubic root of 211111042 is about 595.4385975934.

Adding to 211111042 its reverse (240111112), we get a palindrome (451222154).

The spelling of 211111042 in words is "two hundred eleven million, one hundred eleven thousand, forty-two".