11043255504209 has 2 divisors, whose sum is σ = 11043255504210. Its totient is φ = 11043255504208.

The previous prime is 11043255504199. The next prime is 11043255504241. The reversal of 11043255504209 is 90240555234011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9700141395025 + 1343114109184 = 3114505^2 + 1158928^2 .

It is a cyclic number.

It is not a de Polignac number, because 11043255504209 - 2¹⁶ = 11043255438673 is a prime.

It is not a weakly prime, because it can be changed into another prime (11043255504299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5521627752104 + 5521627752105.

It is an arithmetic number, because the mean of its divisors is an integer number (5521627752105).

Almost surely, 2^{11043255504209} is an apocalyptic number.

It is an amenable number.

11043255504209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11043255504209 is an equidigital number, since it uses as much as digits as its factorization.

11043255504209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216000, while the sum is 41.

The spelling of 11043255504209 in words is "eleven trillion, forty-three billion, two hundred fifty-five million, five hundred four thousand, two hundred nine".