211040107 has 4 divisors (see below), whose sum is σ = 211923360. Its totient is φ = 210156856.

The previous prime is 211040077. The next prime is 211040113. The reversal of 211040107 is 701040112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211040107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211040197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441268 + ... + 441745.

It is an arithmetic number, because the mean of its divisors is an integer number (52980840).

Almost surely, 2^211040107 is an apocalyptic number.

211040107 is a deficient number, since it is larger than the sum of its proper divisors (883253).

211040107 is an equidigital number, since it uses as much as digits as its factorization.

211040107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883252.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 211040107 is about 14527.2195206103. The cubic root of 211040107 is about 595.3718994108.

Adding to 211040107 its reverse (701040112), we get a palindrome (912080219).

The spelling of 211040107 in words is "two hundred eleven million, forty thousand, one hundred seven".