115818287113 has 2 divisors, whose sum is σ = 115818287114. Its totient is φ = 115818287112.

The previous prime is 115818287069. The next prime is 115818287129. The reversal of 115818287113 is 311782818511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114617456704 + 1200830409 = 338552^2 + 34653^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115818287113 is a prime.

It is not a weakly prime, because it can be changed into another prime (115818287713) 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, 57909143556 + 57909143557.

It is an arithmetic number, because the mean of its divisors is an integer number (57909143557).

Almost surely, 2^115818287113 is an apocalyptic number.

It is an amenable number.

115818287113 is a deficient number, since it is larger than the sum of its proper divisors (1).

115818287113 is an equidigital number, since it uses as much as digits as its factorization.

115818287113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 46.

The spelling of 115818287113 in words is "one hundred fifteen billion, eight hundred eighteen million, two hundred eighty-seven thousand, one hundred thirteen".