1111001223 has 32 divisors (see below), whose sum is σ = 1614297600. Its totient is φ = 677511296.

The previous prime is 1111001189. The next prime is 1111001233. The reversal of 1111001223 is 3221001111.

It is a cyclic number.

It is not a de Polignac number, because 1111001223 - 2⁶ = 1111001159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111001199 and 1111001208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111001233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 211513 + ... + 216701.

It is an arithmetic number, because the mean of its divisors is an integer number (50446800).

Almost surely, 2^1111001223 is an apocalyptic number.

1111001223 is a deficient number, since it is larger than the sum of its proper divisors (503296377).

1111001223 is a wasteful number, since it uses less digits than its factorization.

1111001223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5351.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1111001223 is about 33331.6849709102. The cubic root of 1111001223 is about 1035.7100227345.

Adding to 1111001223 its reverse (3221001111), we get a palindrome (4332002334).

The spelling of 1111001223 in words is "one billion, one hundred eleven million, one thousand, two hundred twenty-three".