201118271 has 2 divisors, whose sum is σ = 201118272. Its totient is φ = 201118270.

The previous prime is 201118207. The next prime is 201118283. The reversal of 201118271 is 172811102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201118271 - 2⁶ = 201118207 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201118471) 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, 100559135 + 100559136.

It is an arithmetic number, because the mean of its divisors is an integer number (100559136).

Almost surely, 2^201118271 is an apocalyptic number.

201118271 is a deficient number, since it is larger than the sum of its proper divisors (1).

201118271 is an equidigital number, since it uses as much as digits as its factorization.

201118271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 23.

The square root of 201118271 is about 14181.6173619231. The cubic root of 201118271 is about 585.8914705806.

Adding to 201118271 its reverse (172811102), we get a palindrome (373929373).

It can be divided in two parts, 20111 and 8271, that added together give a palindrome (28382).

The spelling of 201118271 in words is "two hundred one million, one hundred eighteen thousand, two hundred seventy-one".