11011100100109 has 2 divisors, whose sum is σ = 11011100100110. Its totient is φ = 11011100100108.

The previous prime is 11011100100079. The next prime is 11011100100151. The reversal of 11011100100109 is 90100100111011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7114435944100 + 3896664156009 = 2667290^2 + 1973997^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011100100109 - 2⁷ = 11011100099981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11011100100092 and 11011100100101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011100100409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505550050054 + 5505550050055.

It is an arithmetic number, because the mean of its divisors is an integer number (5505550050055).

Almost surely, 2^{11011100100109} is an apocalyptic number.

It is an amenable number.

11011100100109 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011100100109 is an equidigital number, since it uses as much as digits as its factorization.

11011100100109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 16.

The spelling of 11011100100109 in words is "eleven trillion, eleven billion, one hundred million, one hundred thousand, one hundred nine".