211011011 has 2 divisors, whose sum is σ = 211011012. Its totient is φ = 211011010.

The previous prime is 211011007. The next prime is 211011071. The reversal of 211011011 is 110110112.

It is a happy number.

211011011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211011011 - 2² = 211011007 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211011011.

It is not a weakly prime, because it can be changed into another prime (211011071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105505505 + 105505506.

It is an arithmetic number, because the mean of its divisors is an integer number (105505506).

Almost surely, 2^211011011 is an apocalyptic number.

211011011 is a deficient number, since it is larger than the sum of its proper divisors (1).

211011011 is an equidigital number, since it uses as much as digits as its factorization.

211011011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 8.

The square root of 211011011 is about 14526.2180556399. The cubic root of 211011011 is about 595.3445369389.

Adding to 211011011 its reverse (110110112), we get a palindrome (321121123).

It can be divided in two parts, 2 and 11011011, that multiplied together give a palindrome (22022022).

The spelling of 211011011 in words is "two hundred eleven million, eleven thousand, eleven".