12130056 has 48 divisors (see below), whose sum is σ = 34585200. Its totient is φ = 3830112.

The previous prime is 12130049. The next prime is 12130073. The reversal of 12130056 is 65003121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3066 + ... + 5801.

It is an arithmetic number, because the mean of its divisors is an integer number (720525).

Almost surely, 2^12130056 is an apocalyptic number.

It is an amenable number.

12130056 is an abundant number, since it is smaller than the sum of its proper divisors (22455144).

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

12130056 is a wasteful number, since it uses less digits than its factorization.

12130056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8898 (or 8891 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 12130056 is about 3482.8229929182. The cubic root of 12130056 is about 229.7669725546.

Adding to 12130056 its reverse (65003121), we get a palindrome (77133177).

The spelling of 12130056 in words is "twelve million, one hundred thirty thousand, fifty-six".