1118811161087 has 2 divisors, whose sum is σ = 1118811161088. Its totient is φ = 1118811161086.

The previous prime is 1118811161081. The next prime is 1118811161179. The reversal of 1118811161087 is 7801611188111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1118811161087 - 2³⁴ = 1101631291903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1118811161081) 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, 559405580543 + 559405580544.

It is an arithmetic number, because the mean of its divisors is an integer number (559405580544).

Almost surely, 2^{1118811161087} is an apocalyptic number.

1118811161087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118811161087 is an equidigital number, since it uses as much as digits as its factorization.

1118811161087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 44.

The spelling of 1118811161087 in words is "one trillion, one hundred eighteen billion, eight hundred eleven million, one hundred sixty-one thousand, eighty-seven".