118031116081 has 2 divisors, whose sum is σ = 118031116082. Its totient is φ = 118031116080.

The previous prime is 118031116039. The next prime is 118031116087. The reversal of 118031116081 is 180611130811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117796536225 + 234579856 = 343215^2 + 15316^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118031116081 is a prime.

It is a super-2 number, since 2×118031116081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (118031116087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59015558040 + 59015558041.

It is an arithmetic number, because the mean of its divisors is an integer number (59015558041).

Almost surely, 2^118031116081 is an apocalyptic number.

It is an amenable number.

118031116081 is a deficient number, since it is larger than the sum of its proper divisors (1).

118031116081 is an equidigital number, since it uses as much as digits as its factorization.

118031116081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 31.

Adding to 118031116081 its reverse (180611130811), we get a palindrome (298642246892).

The spelling of 118031116081 in words is "one hundred eighteen billion, thirty-one million, one hundred sixteen thousand, eighty-one".