12130500 has 48 divisors (see below), whose sum is σ = 35328384. Its totient is φ = 3234400.

The previous prime is 12130477. The next prime is 12130507. The reversal of 12130500 is 503121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (12130507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2544 + ... + 5543.

It is an arithmetic number, because the mean of its divisors is an integer number (736008).

Almost surely, 2^12130500 is an apocalyptic number.

12130500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12130500 is an abundant number, since it is smaller than the sum of its proper divisors (23197884).

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

12130500 is a wasteful number, since it uses less digits than its factorization.

12130500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8109 (or 8097 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 12130500 is about 3482.8867337311. The cubic root of 12130500 is about 229.7697759297.

Adding to 12130500 its reverse (503121), we get a palindrome (12633621).

The spelling of 12130500 in words is "twelve million, one hundred thirty thousand, five hundred".