11121123 has 16 divisors (see below), whose sum is σ = 16521120. Its totient is φ = 6607104.

The previous prime is 11121083. The next prime is 11121139. The reversal of 11121123 is 32112111.

It is not a de Polignac number, because 11121123 - 2⁸ = 11120867 is a prime.

It is a super-2 number, since 2×11121123² = 247358753562258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11121099 and 11121108.

It is not an unprimeable number, because it can be changed into a prime (11121163) 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, 3786 + ... + 6047.

It is an arithmetic number, because the mean of its divisors is an integer number (1032570).

Almost surely, 2^11121123 is an apocalyptic number.

11121123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11121123 is a deficient number, since it is larger than the sum of its proper divisors (5399997).

11121123 is a wasteful number, since it uses less digits than its factorization.

11121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9878.

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

The square root of 11121123 is about 3334.8347785160. The cubic root of 11121123 is about 223.2113194565.

Adding to 11121123 its reverse (32112111), we get a palindrome (43233234).

The spelling of 11121123 in words is "eleven million, one hundred twenty-one thousand, one hundred twenty-three".