1109996026897 has 2 divisors, whose sum is σ = 1109996026898. Its totient is φ = 1109996026896.

The previous prime is 1109996026891. The next prime is 1109996026969. The reversal of 1109996026897 is 7986206999011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1056062467201 + 53933559696 = 1027649^2 + 232236^2 .

It is an emirp because it is prime and its reverse (7986206999011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1109996026897 - 2³ = 1109996026889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1109996026891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554998013448 + 554998013449.

It is an arithmetic number, because the mean of its divisors is an integer number (554998013449).

Almost surely, 2^{1109996026897} is an apocalyptic number.

It is an amenable number.

1109996026897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109996026897 is an equidigital number, since it uses as much as digits as its factorization.

1109996026897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26453952, while the sum is 67.

The spelling of 1109996026897 in words is "one trillion, one hundred nine billion, nine hundred ninety-six million, twenty-six thousand, eight hundred ninety-seven".