1111232223 has 8 divisors (see below), whose sum is σ = 1646270000. Its totient is φ = 740821464.

The previous prime is 1111232201. The next prime is 1111232257. The reversal of 1111232223 is 3222321111.

It is not a de Polignac number, because 1111232223 - 2⁶ = 1111232159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111232196 and 1111232205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111232923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20578348 + ... + 20578401.

It is an arithmetic number, because the mean of its divisors is an integer number (205783750).

Almost surely, 2^1111232223 is an apocalyptic number.

1111232223 is a deficient number, since it is larger than the sum of its proper divisors (535037777).

1111232223 is an equidigital number, since it uses as much as digits as its factorization.

1111232223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41156758 (or 41156752 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1111232223 is about 33335.1499621646. The cubic root of 1111232223 is about 1035.7817995639.

Adding to 1111232223 its reverse (3222321111), we get a palindrome (4333553334).

The spelling of 1111232223 in words is "one billion, one hundred eleven million, two hundred thirty-two thousand, two hundred twenty-three".