211103071 has 2 divisors, whose sum is σ = 211103072. Its totient is φ = 211103070.

The previous prime is 211103063. The next prime is 211103107. The reversal of 211103071 is 170301112.

Together with next prime (211103107) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211103071 - 2³ = 211103063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211103021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105551535 + 105551536.

It is an arithmetic number, because the mean of its divisors is an integer number (105551536).

Almost surely, 2^211103071 is an apocalyptic number.

211103071 is a deficient number, since it is larger than the sum of its proper divisors (1).

211103071 is an equidigital number, since it uses as much as digits as its factorization.

211103071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 211103071 is about 14529.3864633026. The cubic root of 211103071 is about 595.4311034318.

Adding to 211103071 its reverse (170301112), we get a palindrome (381404183).

The spelling of 211103071 in words is "two hundred eleven million, one hundred three thousand, seventy-one".