11301861209 has 2 divisors, whose sum is σ = 11301861210. Its totient is φ = 11301861208.

The previous prime is 11301861163. The next prime is 11301861247. The reversal of 11301861209 is 90216810311.

11301861209 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., 6422419600 + 4879441609 = 80140^2 + 69853^2 .

It is a cyclic number.

It is not a de Polignac number, because 11301861209 - 2¹² = 11301857113 is a prime.

It is not a weakly prime, because it can be changed into another prime (11301860209) 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, 5650930604 + 5650930605.

It is an arithmetic number, because the mean of its divisors is an integer number (5650930605).

Almost surely, 2^11301861209 is an apocalyptic number.

It is an amenable number.

11301861209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11301861209 is an equidigital number, since it uses as much as digits as its factorization.

11301861209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 11301861209 in words is "eleven billion, three hundred one million, eight hundred sixty-one thousand, two hundred nine".