116181911 has 2 divisors, whose sum is σ = 116181912. Its totient is φ = 116181910.

The previous prime is 116181889. The next prime is 116181937. The reversal of 116181911 is 119181611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 116181911 - 2¹⁴ = 116165527 is a prime.

It is a super-2 number, since 2×116181911² = 26996472887223842, which contains 22 as substring.

It is a Chen prime.

116181911 is a strobogrammatic number because it is the same when read upside-down.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116181311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58090955 + 58090956.

It is an arithmetic number, because the mean of its divisors is an integer number (58090956).

Almost surely, 2^116181911 is an apocalyptic number.

116181911 is a deficient number, since it is larger than the sum of its proper divisors (1).

116181911 is an equidigital number, since it uses as much as digits as its factorization.

116181911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 29.

The square root of 116181911 is about 10778.7713121673. The cubic root of 116181911 is about 487.9546996716.

The spelling of 116181911 in words is "one hundred sixteen million, one hundred eighty-one thousand, nine hundred eleven".