11056430546209 has 2 divisors, whose sum is σ = 11056430546210. Its totient is φ = 11056430546208.

The previous prime is 11056430546071. The next prime is 11056430546267. The reversal of 11056430546209 is 90264503465011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10573370795584 + 483059750625 = 3251672^2 + 695025^2 .

It is an emirp because it is prime and its reverse (90264503465011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11056430546209 - 2²¹ = 11056428449057 is a prime.

It is not a weakly prime, because it can be changed into another prime (11056430546809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5528215273104 + 5528215273105.

It is an arithmetic number, because the mean of its divisors is an integer number (5528215273105).

Almost surely, 2^{11056430546209} is an apocalyptic number.

It is an amenable number.

11056430546209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11056430546209 is an equidigital number, since it uses as much as digits as its factorization.

11056430546209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 11056430546209 in words is "eleven trillion, fifty-six billion, four hundred thirty million, five hundred forty-six thousand, two hundred nine".