11228123 has 4 divisors (see below), whose sum is σ = 11254488. Its totient is φ = 11201760.

The previous prime is 11228089. The next prime is 11228167. The reversal of 11228123 is 32182211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11228123 is a prime.

It is a super-2 number, since 2×11228123² = 252141492206258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11228095 and 11228104.

It is not an unprimeable number, because it can be changed into a prime (11228023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12533 + ... + 13398.

It is an arithmetic number, because the mean of its divisors is an integer number (2813622).

Almost surely, 2^11228123 is an apocalyptic number.

11228123 is a deficient number, since it is larger than the sum of its proper divisors (26365).

11228123 is an equidigital number, since it uses as much as digits as its factorization.

11228123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26364.

The product of its digits is 192, while the sum is 20.

The square root of 11228123 is about 3350.8391486313. The cubic root of 11228123 is about 223.9248990902.

The spelling of 11228123 in words is "eleven million, two hundred twenty-eight thousand, one hundred twenty-three".