12223123 has 8 divisors (see below), whose sum is σ = 13794480. Its totient is φ = 10728480.

The previous prime is 12223109. The next prime is 12223139. The reversal of 12223123 is 32132221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12223123 - 2²¹ = 10125971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12223097 and 12223106.

It is not an unprimeable number, because it can be changed into a prime (12223823) 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 7 ways as a sum of consecutive naturals, for example, 18840 + ... + 19477.

It is an arithmetic number, because the mean of its divisors is an integer number (1724310).

Almost surely, 2^12223123 is an apocalyptic number.

12223123 is a deficient number, since it is larger than the sum of its proper divisors (1571357).

12223123 is a wasteful number, since it uses less digits than its factorization.

12223123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38357.

The product of its digits is 144, while the sum is 16.

The square root of 12223123 is about 3496.1583202138. The cubic root of 12223123 is about 230.3530997302.

Adding to 12223123 its reverse (32132221), we get a palindrome (44355344).

The spelling of 12223123 in words is "twelve million, two hundred twenty-three thousand, one hundred twenty-three".