11063891309 has 4 divisors (see below), whose sum is σ = 11066435004. Its totient is φ = 11061347616.

The previous prime is 11063891299. The next prime is 11063891327. The reversal of 11063891309 is 90319836011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9913189225 + 1150702084 = 99565^2 + 33922^2 .

It is a cyclic number.

It is not a de Polignac number, because 11063891309 - 2³² = 6768924013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11063891339) 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 in 3 ways as a sum of consecutive naturals, for example, 1265312 + ... + 1274025.

It is an arithmetic number, because the mean of its divisors is an integer number (2766608751).

Almost surely, 2^11063891309 is an apocalyptic number.

It is an amenable number.

11063891309 is a deficient number, since it is larger than the sum of its proper divisors (2543695).

11063891309 is an equidigital number, since it uses as much as digits as its factorization.

11063891309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543694.

The product of its (nonzero) digits is 34992, while the sum is 41.

The spelling of 11063891309 in words is "eleven billion, sixty-three million, eight hundred ninety-one thousand, three hundred nine".