1111223223 has 18 divisors (see below), whose sum is σ = 1764285432. Its totient is φ = 673467960.

The previous prime is 1111223213. The next prime is 1111223237. The reversal of 1111223223 is 3223221111.

It is not a de Polignac number, because 1111223223 - 2¹⁰ = 1111222199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111223196 and 1111223205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111223213) 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 17 ways as a sum of consecutive naturals, for example, 509115 + ... + 511292.

Almost surely, 2^1111223223 is an apocalyptic number.

1111223223 is a deficient number, since it is larger than the sum of its proper divisors (653062209).

1111223223 is a wasteful number, since it uses less digits than its factorization.

1111223223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020435 (or 1020421 counting only the distinct ones).

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

The square root of 1111223223 is about 33335.0149692482. The cubic root of 1111223223 is about 1035.7790032502.

Adding to 1111223223 its reverse (3223221111), we get a palindrome (4334444334).

The spelling of 1111223223 in words is "one billion, one hundred eleven million, two hundred twenty-three thousand, two hundred twenty-three".