211063075991 has 2 divisors, whose sum is σ = 211063075992. Its totient is φ = 211063075990.

The previous prime is 211063075981. The next prime is 211063076033. The reversal of 211063075991 is 199570360112.

211063075991 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 211063075991 - 2³⁴ = 193883206807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211063075981) 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, 105531537995 + 105531537996.

It is an arithmetic number, because the mean of its divisors is an integer number (105531537996).

Almost surely, 2^211063075991 is an apocalyptic number.

211063075991 is a deficient number, since it is larger than the sum of its proper divisors (1).

211063075991 is an equidigital number, since it uses as much as digits as its factorization.

211063075991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102060, while the sum is 44.

The spelling of 211063075991 in words is "two hundred eleven billion, sixty-three million, seventy-five thousand, nine hundred ninety-one".