12130240 has 28 divisors (see below), whose sum is σ = 28885896. Its totient is φ = 4851968.

The previous prime is 12130169. The next prime is 12130259. The reversal of 12130240 is 4203121.

It is a self number, because there is not a number n which added to its sum of digits gives 12130240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18634 + ... + 19273.

Almost surely, 2^12130240 is an apocalyptic number.

12130240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12130240 is an abundant number, since it is smaller than the sum of its proper divisors (16755656).

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

12130240 is an equidigital number, since it uses as much as digits as its factorization.

12130240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37924 (or 37914 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 12130240 is about 3482.8494081714. The cubic root of 12130240 is about 229.7681343220.

Adding to 12130240 its reverse (4203121), we get a palindrome (16333361).

The spelling of 12130240 in words is "twelve million, one hundred thirty thousand, two hundred forty".