123204132 has 48 divisors (see below), whose sum is σ = 336235200. Its totient is φ = 38905920.

The previous prime is 123204131. The next prime is 123204161. The reversal of 123204132 is 231402321.

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 (123204131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27969 + ... + 32072.

It is an arithmetic number, because the mean of its divisors is an integer number (7004900).

Almost surely, 2^123204132 is an apocalyptic number.

123204132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123204132 is an abundant number, since it is smaller than the sum of its proper divisors (213031068).

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

123204132 is a wasteful number, since it uses less digits than its factorization.

123204132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60073 (or 60065 counting only the distinct ones).

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

The square root of 123204132 is about 11099.7356725284. The cubic root of 123204132 is about 497.5939497495.

Adding to 123204132 its reverse (231402321), we get a palindrome (354606453).

The spelling of 123204132 in words is "one hundred twenty-three million, two hundred four thousand, one hundred thirty-two".