118318271 has 2 divisors, whose sum is σ = 118318272. Its totient is φ = 118318270.

The previous prime is 118318259. The next prime is 118318273. The reversal of 118318271 is 172813811.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118318271 is a prime.

Together with 118318273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118318273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59159135 + 59159136.

It is an arithmetic number, because the mean of its divisors is an integer number (59159136).

Almost surely, 2^118318271 is an apocalyptic number.

118318271 is a deficient number, since it is larger than the sum of its proper divisors (1).

118318271 is an equidigital number, since it uses as much as digits as its factorization.

118318271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 32.

The square root of 118318271 is about 10877.4202364347. The cubic root of 118318271 is about 490.9273995551.

It can be divided in two parts, 11831 and 8271, that added together give a palindrome (20102).

The spelling of 118318271 in words is "one hundred eighteen million, three hundred eighteen thousand, two hundred seventy-one".