211643872703 has 2 divisors, whose sum is σ = 211643872704. Its totient is φ = 211643872702.

The previous prime is 211643872681. The next prime is 211643872711. The reversal of 211643872703 is 307278346112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211643872703 - 2¹⁸ = 211643610559 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211643872103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105821936351 + 105821936352.

It is an arithmetic number, because the mean of its divisors is an integer number (105821936352).

Almost surely, 2^211643872703 is an apocalyptic number.

211643872703 is a deficient number, since it is larger than the sum of its proper divisors (1).

211643872703 is an equidigital number, since it uses as much as digits as its factorization.

211643872703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 211643872703 in words is "two hundred eleven billion, six hundred forty-three million, eight hundred seventy-two thousand, seven hundred three".