211042043 has 8 divisors (see below), whose sum is σ = 226170528. Its totient is φ = 196409664.

The previous prime is 211042037. The next prime is 211042057. The reversal of 211042043 is 340240112.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211042043 is a prime.

It is a super-2 number, since 2×211042043² = 89077487827227698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211042003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123146 + ... + 124847.

It is an arithmetic number, because the mean of its divisors is an integer number (28271316).

Almost surely, 2^211042043 is an apocalyptic number.

211042043 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

211042043 is a deficient number, since it is larger than the sum of its proper divisors (15128485).

211042043 is a wasteful number, since it uses less digits than its factorization.

211042043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248053.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 211042043 is about 14527.2861539931. The cubic root of 211042043 is about 595.3737199754.

Adding to 211042043 its reverse (340240112), we get a palindrome (551282155).

The spelling of 211042043 in words is "two hundred eleven million, forty-two thousand, forty-three".