11100100009 has 2 divisors, whose sum is σ = 11100100010. Its totient is φ = 11100100008.

The previous prime is 11100099979. The next prime is 11100100031. The reversal of 11100100009 is 90000100111.

11100100009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10950576025 + 149523984 = 104645^2 + 12228^2 .

It is a cyclic number.

It is not a de Polignac number, because 11100100009 - 2¹⁵ = 11100067241 is a prime.

It is not a weakly prime, because it can be changed into another prime (11100100079) 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, 5550050004 + 5550050005.

It is an arithmetic number, because the mean of its divisors is an integer number (5550050005).

Almost surely, 2^11100100009 is an apocalyptic number.

It is an amenable number.

11100100009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100100009 is an equidigital number, since it uses as much as digits as its factorization.

11100100009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9, while the sum is 13.

The spelling of 11100100009 in words is "eleven billion, one hundred million, one hundred thousand, nine".