12103040 has 32 divisors (see below), whose sum is σ = 28935360. Its totient is φ = 4840960.

The previous prime is 12103009. The next prime is 12103043. The reversal of 12103040 is 4030121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103043) 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, 8816 + ... + 10095.

It is an arithmetic number, because the mean of its divisors is an integer number (904230).

Almost surely, 2^12103040 is an apocalyptic number.

12103040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103040 is an abundant number, since it is smaller than the sum of its proper divisors (16832320).

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

12103040 is an equidigital number, since it uses as much as digits as its factorization.

12103040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18930 (or 18918 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 12103040 is about 3478.9423680193. The cubic root of 12103040 is about 229.5962671434.

Adding to 12103040 its reverse (4030121), we get a palindrome (16133161).

The spelling of 12103040 in words is "twelve million, one hundred three thousand, forty".