123321223 has 2 divisors, whose sum is σ = 123321224. Its totient is φ = 123321222.

The previous prime is 123321203. The next prime is 123321257. The reversal of 123321223 is 322123321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123321223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123321223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123321203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61660611 + 61660612.

It is an arithmetic number, because the mean of its divisors is an integer number (61660612).

Almost surely, 2^123321223 is an apocalyptic number.

123321223 is a deficient number, since it is larger than the sum of its proper divisors (1).

123321223 is an equidigital number, since it uses as much as digits as its factorization.

123321223 is an odious number, because the sum of its binary digits is odd.

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

The square root of 123321223 is about 11105.0089148996. The cubic root of 123321223 is about 497.7515346301.

Adding to 123321223 its reverse (322123321), we get a palindrome (445444544).

It can be divided in two parts, 1233212 and 23, that added together give a triangular number (1233235 = T₁₅₇₀).

The spelling of 123321223 in words is "one hundred twenty-three million, three hundred twenty-one thousand, two hundred twenty-three".