11065744321 has 4 divisors (see below), whose sum is σ = 11230904752. Its totient is φ = 10900583892.

The previous prime is 11065744309. The next prime is 11065744331. The reversal of 11065744321 is 12344756011.

11065744321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12344756011 = 7 ⋅1763536573.

It is a cyclic number.

It is not a de Polignac number, because 11065744321 - 2²⁹ = 10528873409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11065744331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82580115 + ... + 82580248.

It is an arithmetic number, because the mean of its divisors is an integer number (2807726188).

Almost surely, 2^11065744321 is an apocalyptic number.

It is an amenable number.

11065744321 is a deficient number, since it is larger than the sum of its proper divisors (165160431).

11065744321 is an equidigital number, since it uses as much as digits as its factorization.

11065744321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165160430.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 11065744321 in words is "eleven billion, sixty-five million, seven hundred forty-four thousand, three hundred twenty-one".