123204272 has 20 divisors (see below), whose sum is σ = 242756040. Its totient is φ = 60557568.

The previous prime is 123204271. The next prime is 123204313. The reversal of 123204272 is 272402321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (123204271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64313 + ... + 66200.

It is an arithmetic number, because the mean of its divisors is an integer number (12137802).

Almost surely, 2^123204272 is an apocalyptic number.

It is an amenable number.

123204272 is a deficient number, since it is larger than the sum of its proper divisors (119551768).

123204272 is a wasteful number, since it uses less digits than its factorization.

123204272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130580 (or 130574 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 123204272 is about 11099.7419789831. The cubic root of 123204272 is about 497.5941382256.

Adding to 123204272 its reverse (272402321), we get a palindrome (395606593).

The spelling of 123204272 in words is "one hundred twenty-three million, two hundred four thousand, two hundred seventy-two".