206153101171 has 2 divisors, whose sum is σ = 206153101172. Its totient is φ = 206153101170.

The previous prime is 206153101163. The next prime is 206153101213. The reversal of 206153101171 is 171101351602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206153101171 - 2³ = 206153101163 is a prime.

It is a super-2 number, since 2×206153101171² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (206153101111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103076550585 + 103076550586.

It is an arithmetic number, because the mean of its divisors is an integer number (103076550586).

Almost surely, 2^206153101171 is an apocalyptic number.

206153101171 is a deficient number, since it is larger than the sum of its proper divisors (1).

206153101171 is an equidigital number, since it uses as much as digits as its factorization.

206153101171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 28.

Adding to 206153101171 its reverse (171101351602), we get a palindrome (377254452773).

The spelling of 206153101171 in words is "two hundred six billion, one hundred fifty-three million, one hundred one thousand, one hundred seventy-one".