123223104 has 42 divisors (see below), whose sum is σ = 353198430. Its totient is φ = 41074176.

The previous prime is 123223103. The next prime is 123223181. The reversal of 123223104 is 401322321.

It can be written as a sum of positive squares in only one way, i.e., 115605504 + 7617600 = 10752^2 + 2760^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (123223103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106389 + ... + 107540.

Almost surely, 2^123223104 is an apocalyptic number.

It is an amenable number.

123223104 is an abundant number, since it is smaller than the sum of its proper divisors (229975326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123223104 is a wasteful number, since it uses less digits than its factorization.

123223104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213947 (or 213934 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 123223104 is about 11100.5902545766. The cubic root of 123223104 is about 497.6194896610.

Adding to 123223104 its reverse (401322321), we get a palindrome (524545425).

It can be divided in two parts, 1232 and 23104, that added together give a square (24336 = 156²).

The spelling of 123223104 in words is "one hundred twenty-three million, two hundred twenty-three thousand, one hundred four".