11161294316209 has 2 divisors, whose sum is σ = 11161294316210. Its totient is φ = 11161294316208.

The previous prime is 11161294316203. The next prime is 11161294316267. The reversal of 11161294316209 is 90261349216111.

11161294316209 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., 11149288293025 + 12006023184 = 3339055^2 + 109572^2 .

It is a cyclic number.

It is not a de Polignac number, because 11161294316209 - 2¹⁵ = 11161294283441 is a prime.

It is not a weakly prime, because it can be changed into another prime (11161294316203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5580647158104 + 5580647158105.

It is an arithmetic number, because the mean of its divisors is an integer number (5580647158105).

Almost surely, 2^{11161294316209} is an apocalyptic number.

It is an amenable number.

11161294316209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11161294316209 is an equidigital number, since it uses as much as digits as its factorization.

11161294316209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 46.

The spelling of 11161294316209 in words is "eleven trillion, one hundred sixty-one billion, two hundred ninety-four million, three hundred sixteen thousand, two hundred nine".