1123688318899 has 2 divisors, whose sum is σ = 1123688318900. Its totient is φ = 1123688318898.

The previous prime is 1123688318801. The next prime is 1123688318971. The reversal of 1123688318899 is 9988138863211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1123688318899 - 2¹⁷ = 1123688187827 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123688318699) 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, 561844159449 + 561844159450.

It is an arithmetic number, because the mean of its divisors is an integer number (561844159450).

Almost surely, 2^{1123688318899} is an apocalyptic number.

1123688318899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123688318899 is an equidigital number, since it uses as much as digits as its factorization.

1123688318899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35831808, while the sum is 67.

The spelling of 1123688318899 in words is "one trillion, one hundred twenty-three billion, six hundred eighty-eight million, three hundred eighteen thousand, eight hundred ninety-nine".