12130020 has 96 divisors (see below), whose sum is σ = 43142400. Its totient is φ = 2771712.

The previous prime is 12130007. The next prime is 12130049. The reversal of 12130020 is 2003121.

It is a happy number.

12130020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a zygodrome in base 6.

It is a junction number, because it is equal to n+sod(n) for n = 12129984 and 12130011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2176 + ... + 5384.

It is an arithmetic number, because the mean of its divisors is an integer number (449400).

Almost surely, 2^12130020 is an apocalyptic number.

12130020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12130020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21571200).

12130020 is an abundant number, since it is smaller than the sum of its proper divisors (31012380).

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

12130020 is a wasteful number, since it uses less digits than its factorization.

12130020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3234 (or 3226 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 12130020 is about 3482.8178246931. The cubic root of 12130020 is about 229.7667452509.

Adding to 12130020 its reverse (2003121), we get a palindrome (14133141).

The spelling of 12130020 in words is "twelve million, one hundred thirty thousand, twenty".