11112443321 has 16 divisors (see below), whose sum is σ = 12904661376. Its totient is φ = 9371742336.

The previous prime is 11112443317. The next prime is 11112443347. The reversal of 11112443321 is 12334421111.

It is a cyclic number.

It is not a de Polignac number, because 11112443321 - 2² = 11112443317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11112443351) 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 15 ways as a sum of consecutive naturals, for example, 397805 + ... + 424821.

It is an arithmetic number, because the mean of its divisors is an integer number (806541336).

Almost surely, 2^11112443321 is an apocalyptic number.

It is an amenable number.

11112443321 is a deficient number, since it is larger than the sum of its proper divisors (1792218055).

11112443321 is an equidigital number, since it uses as much as digits as its factorization.

11112443321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27968.

The product of its digits is 576, while the sum is 23.

Adding to 11112443321 its reverse (12334421111), we get a palindrome (23446864432).

The spelling of 11112443321 in words is "eleven billion, one hundred twelve million, four hundred forty-three thousand, three hundred twenty-one".