12123330 has 32 divisors (see below), whose sum is σ = 30628800. Its totient is φ = 3062592.

The previous prime is 12123317. The next prime is 12123341. The reversal of 12123330 is 3332121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 10065 + ... + 11204.

It is an arithmetic number, because the mean of its divisors is an integer number (957150).

Almost surely, 2^12123330 is an apocalyptic number.

12123330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123330 is an abundant number, since it is smaller than the sum of its proper divisors (18505470).

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

12123330 is a wasteful number, since it uses less digits than its factorization.

12123330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21298.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 12123330 is about 3481.8572630135. The cubic root of 12123330 is about 229.7244968402.

Adding to 12123330 its reverse (3332121), we get a palindrome (15455451).

The spelling of 12123330 in words is "twelve million, one hundred twenty-three thousand, three hundred thirty".