211206504671 has 2 divisors, whose sum is σ = 211206504672. Its totient is φ = 211206504670.

The previous prime is 211206504631. The next prime is 211206504701. The reversal of 211206504671 is 176405602112.

211206504671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211206504671 - 2¹⁰ = 211206503647 is a prime.

It is a super-2 number, since 2×211206504671² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211206504631) 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, 105603252335 + 105603252336.

It is an arithmetic number, because the mean of its divisors is an integer number (105603252336).

Almost surely, 2^211206504671 is an apocalyptic number.

211206504671 is a deficient number, since it is larger than the sum of its proper divisors (1).

211206504671 is an equidigital number, since it uses as much as digits as its factorization.

211206504671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 211206504671 in words is "two hundred eleven billion, two hundred six million, five hundred four thousand, six hundred seventy-one".