11065003421 has 4 divisors (see below), whose sum is σ = 11065703100. Its totient is φ = 11064303744.

The previous prime is 11065003373. The next prime is 11065003463. The reversal of 11065003421 is 12430056011.

11065003421 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 an emirpimes, since its reverse is a distinct semiprime: 12430056011 = 11491 ⋅1081721.

It can be written as a sum of positive squares in 2 ways, for example, as 7359237796 + 3705765625 = 85786^2 + 60875^2 .

It is a cyclic number.

It is not a de Polignac number, because 11065003421 - 2¹⁰ = 11065002397 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 (11065003721) 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, 325556 + ... + 357933.

It is an arithmetic number, because the mean of its divisors is an integer number (2766425775).

Almost surely, 2^11065003421 is an apocalyptic number.

It is an amenable number.

11065003421 is a deficient number, since it is larger than the sum of its proper divisors (699679).

11065003421 is an equidigital number, since it uses as much as digits as its factorization.

11065003421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699678.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 11065003421 its reverse (12430056011), we get a palindrome (23495059432).

The spelling of 11065003421 in words is "eleven billion, sixty-five million, three thousand, four hundred twenty-one".