12120306 has 32 divisors (see below), whose sum is σ = 26568000. Its totient is φ = 3655680.

The previous prime is 12120301. The next prime is 12120307. The reversal of 12120306 is 60302121.

It is not an unprimeable number, because it can be changed into a prime (12120301) 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, 26770 + ... + 27218.

It is an arithmetic number, because the mean of its divisors is an integer number (830250).

Almost surely, 2^12120306 is an apocalyptic number.

12120306 is an abundant number, since it is smaller than the sum of its proper divisors (14447694).

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

12120306 is a wasteful number, since it uses less digits than its factorization.

12120306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 12120306 is about 3481.4229849302. The cubic root of 12120306 is about 229.7053947000.

Adding to 12120306 its reverse (60302121), we get a palindrome (72422427).

The spelling of 12120306 in words is "twelve million, one hundred twenty thousand, three hundred six".