123030224 has 80 divisors (see below), whose sum is σ = 263786688. Its totient is φ = 55351296.

The previous prime is 123030223. The next prime is 123030233. The reversal of 123030224 is 422030321.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123030223) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 783554 + ... + 783710.

Almost surely, 2^123030224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123030224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131893344).

123030224 is an abundant number, since it is smaller than the sum of its proper divisors (140756464).

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

123030224 is a wasteful number, since it uses less digits than its factorization.

123030224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 123030224 is about 11091.8990258657. The cubic root of 123030224 is about 497.3597143241.

Adding to 123030224 its reverse (422030321), we get a palindrome (545060545).

The spelling of 123030224 in words is "one hundred twenty-three million, thirty thousand, two hundred twenty-four".