123412223 has 4 divisors (see below), whose sum is σ = 134631528. Its totient is φ = 112192920.

The previous prime is 123412217. The next prime is 123412229. The reversal of 123412223 is 322214321.

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

It is an interprime number because it is at equal distance from previous prime (123412217) and next prime (123412229).

It is a cyclic number.

It is not a de Polignac number, because 123412223 - 2⁴ = 123412207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123412195 and 123412204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123412229) 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, 5609636 + ... + 5609657.

It is an arithmetic number, because the mean of its divisors is an integer number (33657882).

Almost surely, 2^123412223 is an apocalyptic number.

123412223 is a deficient number, since it is larger than the sum of its proper divisors (11219305).

123412223 is a wasteful number, since it uses less digits than its factorization.

123412223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11219304.

The product of its digits is 576, while the sum is 20.

The square root of 123412223 is about 11109.1054095278. The cubic root of 123412223 is about 497.8739365217.

Adding to 123412223 its reverse (322214321), we get a palindrome (445626544).

The spelling of 123412223 in words is "one hundred twenty-three million, four hundred twelve thousand, two hundred twenty-three".