12120432 has 20 divisors (see below), whose sum is σ = 31311240. Its totient is φ = 4040128.

The previous prime is 12120431. The next prime is 12120443. The reversal of 12120432 is 23402121.

12120432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126207 + ... + 126302.

It is an arithmetic number, because the mean of its divisors is an integer number (1565562).

Almost surely, 2^12120432 is an apocalyptic number.

12120432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12120432 is an abundant number, since it is smaller than the sum of its proper divisors (19190808).

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

12120432 is a wasteful number, since it uses less digits than its factorization.

12120432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252520 (or 252514 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 12120432 is about 3481.4410809319. The cubic root of 12120432 is about 229.7061906860.

Adding to 12120432 its reverse (23402121), we get a palindrome (35522553).

The spelling of 12120432 in words is "twelve million, one hundred twenty thousand, four hundred thirty-two".