211011071 has 2 divisors, whose sum is σ = 211011072. Its totient is φ = 211011070.

The previous prime is 211011011. The next prime is 211011083. The reversal of 211011071 is 170110112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211011071 - 2⁶ = 211011007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211011011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105505535 + 105505536.

It is an arithmetic number, because the mean of its divisors is an integer number (105505536).

Almost surely, 2^211011071 is an apocalyptic number.

211011071 is a deficient number, since it is larger than the sum of its proper divisors (1).

211011071 is an equidigital number, since it uses as much as digits as its factorization.

211011071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14, while the sum is 14.

The square root of 211011071 is about 14526.2201208711. The cubic root of 211011071 is about 595.3445933668.

Adding to 211011071 its reverse (170110112), we get a palindrome (381121183).

The spelling of 211011071 in words is "two hundred eleven million, eleven thousand, seventy-one".