11206436009 has 2 divisors, whose sum is σ = 11206436010. Its totient is φ = 11206436008.

The previous prime is 11206435993. The next prime is 11206436053. The reversal of 11206436009 is 90063460211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10455676009 + 750760000 = 102253^2 + 27400^2 .

It is a cyclic number.

It is not a de Polignac number, because 11206436009 - 2⁴ = 11206435993 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11206436089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5603218004 + 5603218005.

It is an arithmetic number, because the mean of its divisors is an integer number (5603218005).

Almost surely, 2^11206436009 is an apocalyptic number.

It is an amenable number.

11206436009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11206436009 is an equidigital number, since it uses as much as digits as its factorization.

11206436009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 11206436009 in words is "eleven billion, two hundred six million, four hundred thirty-six thousand, nine".