123223213 has 4 divisors (see below), whose sum is σ = 128580768. Its totient is φ = 117865660.

The previous prime is 123223207. The next prime is 123223249. The reversal of 123223213 is 312322321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123223213 - 2⁵ = 123223181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123223313) 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, 2678743 + ... + 2678788.

It is an arithmetic number, because the mean of its divisors is an integer number (32145192).

Almost surely, 2^123223213 is an apocalyptic number.

It is an amenable number.

123223213 is a deficient number, since it is larger than the sum of its proper divisors (5357555).

123223213 is an equidigital number, since it uses as much as digits as its factorization.

123223213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5357554.

The product of its digits is 432, while the sum is 19.

The square root of 123223213 is about 11100.5951642243. The cubic root of 123223213 is about 497.6196363881.

Adding to 123223213 its reverse (312322321), we get a palindrome (435545534).

It can be divided in two parts, 12322321 and 3, that multiplied together give a palindrome (36966963).

The spelling of 123223213 in words is "one hundred twenty-three million, two hundred twenty-three thousand, two hundred thirteen".