1100009999947 has 2 divisors, whose sum is σ = 1100009999948. Its totient is φ = 1100009999946.

The previous prime is 1100009999857. The next prime is 1100009999953. The reversal of 1100009999947 is 7499999000011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1100009999947 - 2¹⁵ = 1100009967179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100009999891 and 1100009999900.

It is not a weakly prime, because it can be changed into another prime (1100009939947) 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, 550004999973 + 550004999974.

It is an arithmetic number, because the mean of its divisors is an integer number (550004999974).

Almost surely, 2^{1100009999947} is an apocalyptic number.

1100009999947 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100009999947 is an equidigital number, since it uses as much as digits as its factorization.

1100009999947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1653372, while the sum is 58.

The spelling of 1100009999947 in words is "one trillion, one hundred billion, nine million, nine hundred ninety-nine thousand, nine hundred forty-seven".