123143222 has 16 divisors (see below), whose sum is σ = 197251200. Its totient is φ = 57529920.

The previous prime is 123143183. The next prime is 123143227. The reversal of 123143222 is 222341321.

It is a junction number, because it is equal to n+sod(n) for n = 123143194 and 123143203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123143227) 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, 32447 + ... + 36042.

It is an arithmetic number, because the mean of its divisors is an integer number (12328200).

Almost surely, 2^123143222 is an apocalyptic number.

123143222 is a deficient number, since it is larger than the sum of its proper divisors (74107978).

123143222 is a wasteful number, since it uses less digits than its factorization.

123143222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68551.

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

The square root of 123143222 is about 11096.9915742962. The cubic root of 123143222 is about 497.5119356075.

Adding to 123143222 its reverse (222341321), we get a palindrome (345484543).

The spelling of 123143222 in words is "one hundred twenty-three million, one hundred forty-three thousand, two hundred twenty-two".