123220204 has 12 divisors (see below), whose sum is σ = 218589784. Its totient is φ = 60765984.

The previous prime is 123220193. The next prime is 123220219. The reversal of 123220204 is 402022321.

It is a super-3 number, since 3×123220204³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210702 + ... + 211285.

Almost surely, 2^123220204 is an apocalyptic number.

It is an amenable number.

123220204 is a deficient number, since it is larger than the sum of its proper divisors (95369580).

123220204 is a wasteful number, since it uses less digits than its factorization.

123220204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422064 (or 422062 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 123220204 is about 11100.4596301234. The cubic root of 123220204 is about 497.6155858805.

Adding to 123220204 its reverse (402022321), we get a palindrome (525242525).

The spelling of 123220204 in words is "one hundred twenty-three million, two hundred twenty thousand, two hundred four".