11011210120109 has 2 divisors, whose sum is σ = 11011210120110. Its totient is φ = 11011210120108.

The previous prime is 11011210120087. The next prime is 11011210120201. The reversal of 11011210120109 is 90102101211011.

11011210120109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10503290210884 + 507919909225 = 3240878^2 + 712685^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11011210120109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011210120709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505605060054 + 5505605060055.

It is an arithmetic number, because the mean of its divisors is an integer number (5505605060055).

Almost surely, 2^{11011210120109} is an apocalyptic number.

It is an amenable number.

11011210120109 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011210120109 is an equidigital number, since it uses as much as digits as its factorization.

11011210120109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 11011210120109 in words is "eleven trillion, eleven billion, two hundred ten million, one hundred twenty thousand, one hundred nine".