206128611341 has 2 divisors, whose sum is σ = 206128611342. Its totient is φ = 206128611340.

The previous prime is 206128611331. The next prime is 206128611371. The reversal of 206128611341 is 143116821602.

206128611341 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 can be written as a sum of positive squares in only one way, i.e., 191096625316 + 15031986025 = 437146^2 + 122605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206128611341 is a prime.

It is a super-4 number, since 4×206128611341⁴ (a number of 46 digits) contains 4444 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206128611331) 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, 103064305670 + 103064305671.

It is an arithmetic number, because the mean of its divisors is an integer number (103064305671).

Almost surely, 2^206128611341 is an apocalyptic number.

It is an amenable number.

206128611341 is a deficient number, since it is larger than the sum of its proper divisors (1).

206128611341 is an equidigital number, since it uses as much as digits as its factorization.

206128611341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The spelling of 206128611341 in words is "two hundred six billion, one hundred twenty-eight million, six hundred eleven thousand, three hundred forty-one".