11208263612009 has 2 divisors, whose sum is σ = 11208263612010. Its totient is φ = 11208263612008.

The previous prime is 11208263611997. The next prime is 11208263612033. The reversal of 11208263612009 is 90021636280211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5779922797609 + 5428340814400 = 2404147^2 + 2329880^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11208263612009 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 (11208263612089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5604131806004 + 5604131806005.

It is an arithmetic number, because the mean of its divisors is an integer number (5604131806005).

Almost surely, 2^{11208263612009} is an apocalyptic number.

It is an amenable number.

11208263612009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11208263612009 is an equidigital number, since it uses as much as digits as its factorization.

11208263612009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 11208263612009 in words is "eleven trillion, two hundred eight billion, two hundred sixty-three million, six hundred twelve thousand, nine".