211311003887 has 2 divisors, whose sum is σ = 211311003888. Its totient is φ = 211311003886.

The previous prime is 211311003851. The next prime is 211311003941. The reversal of 211311003887 is 788300113112.

It is a happy number.

211311003887 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 211311003887 - 2⁶ = 211311003823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211311003817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105655501943 + 105655501944.

It is an arithmetic number, because the mean of its divisors is an integer number (105655501944).

Almost surely, 2^211311003887 is an apocalyptic number.

211311003887 is a deficient number, since it is larger than the sum of its proper divisors (1).

211311003887 is an equidigital number, since it uses as much as digits as its factorization.

211311003887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 35.

Adding to 211311003887 its reverse (788300113112), we get a palindrome (999611116999).

The spelling of 211311003887 in words is "two hundred eleven billion, three hundred eleven million, three thousand, eight hundred eighty-seven".