123204122 has 16 divisors (see below), whose sum is σ = 191530440. Its totient is φ = 59368512.

The previous prime is 123204101. The next prime is 123204127. The reversal of 123204122 is 221402321.

It can be written as a sum of positive squares in 4 ways, for example, as 119924401 + 3279721 = 10951^2 + 1811^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123204122.

It is not an unprimeable number, because it can be changed into a prime (123204127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36248 + ... + 39500.

Almost surely, 2^123204122 is an apocalyptic number.

123204122 is a deficient number, since it is larger than the sum of its proper divisors (68326318).

123204122 is a wasteful number, since it uses less digits than its factorization.

123204122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3937.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 123204122 is about 11099.7352220672. The cubic root of 123204122 is about 497.5939362869.

Adding to 123204122 its reverse (221402321), we get a palindrome (344606443).

The spelling of 123204122 in words is "one hundred twenty-three million, two hundred four thousand, one hundred twenty-two".