1188811188811 has 2 divisors, whose sum is σ = 1188811188812. Its totient is φ = 1188811188810.

The previous prime is 1188811188779. The next prime is 1188811188823.

It is a happy number.

1188811188811 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 1188811188811 - 2⁵ = 1188811188779 is a prime.

1188811188811 is a strobogrammatic number because it is the same when read upside-down.

It is a zygodrome in base 10.

It is not a weakly prime, because it can be changed into another prime (1188811158811) 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, 594405594405 + 594405594406.

It is an arithmetic number, because the mean of its divisors is an integer number (594405594406).

Almost surely, 2^{1188811188811} is an apocalyptic number.

1188811188811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1188811188811 is an equidigital number, since it uses as much as digits as its factorization.

1188811188811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 262144, while the sum is 55.

The spelling of 1188811188811 in words is "one trillion, one hundred eighty-eight billion, eight hundred eleven million, one hundred eighty-eight thousand, eight hundred eleven".