123422213 has 8 divisors (see below), whose sum is σ = 126603000. Its totient is φ = 120273088.

The previous prime is 123422203. The next prime is 123422237. The reversal of 123422213 is 312224321.

It can be written as a sum of positive squares in 4 ways, for example, as 47087044 + 76335169 = 6862^2 + 8737^2 .

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 123422213 - 2⁸ = 123421957 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 (123422203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83 + ... + 15711.

It is an arithmetic number, because the mean of its divisors is an integer number (15825375).

Almost surely, 2^123422213 is an apocalyptic number.

It is an amenable number.

123422213 is a deficient number, since it is larger than the sum of its proper divisors (3180787).

123422213 is a wasteful number, since it uses less digits than its factorization.

123422213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15831.

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

The square root of 123422213 is about 11109.5550315933. Note that the first 3 decimals coincide. The cubic root of 123422213 is about 497.8873701625.

Adding to 123422213 its reverse (312224321), we get a palindrome (435646534).

The spelling of 123422213 in words is "one hundred twenty-three million, four hundred twenty-two thousand, two hundred thirteen".