1100009108789 has 2 divisors, whose sum is σ = 1100009108790. Its totient is φ = 1100009108788.

The previous prime is 1100009108767. The next prime is 1100009108801. The reversal of 1100009108789 is 9878019000011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1091826459025 + 8182649764 = 1044905^2 + 90458^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100009108789 - 2²⁸ = 1099740673333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100009108719) 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, 550004554394 + 550004554395.

It is an arithmetic number, because the mean of its divisors is an integer number (550004554395).

Almost surely, 2^{1100009108789} is an apocalyptic number.

It is an amenable number.

1100009108789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100009108789 is an equidigital number, since it uses as much as digits as its factorization.

1100009108789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 44.

The spelling of 1100009108789 in words is "one trillion, one hundred billion, nine million, one hundred eight thousand, seven hundred eighty-nine".