1011112223 has 16 divisors (see below), whose sum is σ = 1153440000. Its totient is φ = 877356480.

The previous prime is 1011112199. The next prime is 1011112241. The reversal of 1011112223 is 3222111101.

1011112223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1011112223 - 2⁶ = 1011112159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011112198 and 1011112207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011112243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122243 + ... + 130251.

It is an arithmetic number, because the mean of its divisors is an integer number (72090000).

Almost surely, 2^1011112223 is an apocalyptic number.

1011112223 is a deficient number, since it is larger than the sum of its proper divisors (142327777).

1011112223 is a wasteful number, since it uses less digits than its factorization.

1011112223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8542.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1011112223 is about 31797.9908642040. The cubic root of 1011112223 is about 1003.6904382451.

Adding to 1011112223 its reverse (3222111101), we get a palindrome (4233223324).

The spelling of 1011112223 in words is "one billion, eleven million, one hundred twelve thousand, two hundred twenty-three".