11123229 has 16 divisors (see below), whose sum is σ = 16194752. Its totient is φ = 6749568.

The previous prime is 11123221. The next prime is 11123243. The reversal of 11123229 is 92232111.

11123229 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11123229 - 2³ = 11123221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 894 + ... + 4800.

It is an arithmetic number, because the mean of its divisors is an integer number (1012172).

Almost surely, 2^11123229 is an apocalyptic number.

It is an amenable number.

11123229 is a deficient number, since it is larger than the sum of its proper divisors (5071523).

11123229 is a wasteful number, since it uses less digits than its factorization.

11123229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3996.

The product of its digits is 216, while the sum is 21.

The square root of 11123229 is about 3335.1505213408. The cubic root of 11123229 is about 223.2254083625.

The spelling of 11123229 in words is "eleven million, one hundred twenty-three thousand, two hundred twenty-nine".