123204433 has 4 divisors (see below), whose sum is σ = 134404848. Its totient is φ = 112004020.

The previous prime is 123204397. The next prime is 123204439. The reversal of 123204433 is 334402321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123204433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123204439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5600191 + ... + 5600212.

It is an arithmetic number, because the mean of its divisors is an integer number (33601212).

Almost surely, 2^123204433 is an apocalyptic number.

It is an amenable number.

123204433 is a deficient number, since it is larger than the sum of its proper divisors (11200415).

123204433 is a wasteful number, since it uses less digits than its factorization.

123204433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11200414.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 123204433 is about 11099.7492314016. The cubic root of 123204433 is about 497.5943549730.

Adding to 123204433 its reverse (334402321), we get a palindrome (457606754).

The spelling of 123204433 in words is "one hundred twenty-three million, two hundred four thousand, four hundred thirty-three".