123223 has 4 divisors (see below), whose sum is σ = 124200. Its totient is φ = 122248.

The previous prime is 123217. The next prime is 123229. The reversal of 123223 is 322321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 322321 = 157 ⋅2053.

It is an interprime number because it is at equal distance from previous prime (123217) and next prime (123229).

It is a cyclic number.

It is not a de Polignac number, because 123223 - 2⁵ = 123191 is a prime.

It is a d-powerful number, because it can be written as 1 + 2² + 2¹⁰ + 3¹⁰ + 2¹² + 3¹⁰ .

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123229) 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, 265 + ... + 562.

It is an arithmetic number, because the mean of its divisors is an integer number (31050).

2¹²³²²³ is an apocalyptic number.

123223 is a deficient number, since it is larger than the sum of its proper divisors (977).

123223 is an equidigital number, since it uses as much as digits as its factorization.

123223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976.

The product of its digits is 72, while the sum is 13.

The square root of 123223 is about 351.0313376324. The cubic root of 123223 is about 49.7619349664.

Adding to 123223 its reverse (322321), we get a palindrome (445544).

The spelling of 123223 in words is "one hundred twenty-three thousand, two hundred twenty-three", and thus it is an iban number.