1111223321 has 4 divisors (see below), whose sum is σ = 1196702052. Its totient is φ = 1025744592.

The previous prime is 1111223297. The next prime is 1111223353. The reversal of 1111223321 is 1233221111.

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 262083721 + 849139600 = 16189^2 + 29140^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111223321 - 2³⁰ = 37481497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1111223321.

It is not an unprimeable number, because it can be changed into a prime (1111223371) 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, 42739346 + ... + 42739371.

It is an arithmetic number, because the mean of its divisors is an integer number (299175513).

Almost surely, 2^1111223321 is an apocalyptic number.

It is an amenable number.

1111223321 is a deficient number, since it is larger than the sum of its proper divisors (85478731).

1111223321 is an equidigital number, since it uses as much as digits as its factorization.

1111223321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85478730.

The product of its digits is 72, while the sum is 17.

The square root of 1111223321 is about 33335.0164391740. The cubic root of 1111223321 is about 1035.7790336991.

Adding to 1111223321 its reverse (1233221111), we get a palindrome (2344444432).

The spelling of 1111223321 in words is "one billion, one hundred eleven million, two hundred twenty-three thousand, three hundred twenty-one".