11104430321 has 4 divisors (see below), whose sum is σ = 11109571044. Its totient is φ = 11099289600.

The previous prime is 11104430287. The next prime is 11104430333. The reversal of 11104430321 is 12303440111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12303440111 = 37879 ⋅324809.

It can be written as a sum of positive squares in 2 ways, for example, as 4188678400 + 6915751921 = 64720^2 + 83161^2 .

It is a cyclic number.

It is not a de Polignac number, because 11104430321 - 2³⁰ = 10030688497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11104430293 and 11104430302.

It is not an unprimeable number, because it can be changed into a prime (11104430341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2567120 + ... + 2571441.

It is an arithmetic number, because the mean of its divisors is an integer number (2777392761).

Almost surely, 2^11104430321 is an apocalyptic number.

It is an amenable number.

11104430321 is a deficient number, since it is larger than the sum of its proper divisors (5140723).

11104430321 is an equidigital number, since it uses as much as digits as its factorization.

11104430321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5140722.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11104430321 its reverse (12303440111), we get a palindrome (23407870432).

The spelling of 11104430321 in words is "eleven billion, one hundred four million, four hundred thirty thousand, three hundred twenty-one".