12130112 has 28 divisors (see below), whose sum is σ = 25488900. Its totient is φ = 5707776.

The previous prime is 12130109. The next prime is 12130159. The reversal of 12130112 is 21103121.

It can be written as a sum of positive squares in 2 ways, for example, as 6635776 + 5494336 = 2576^2 + 2344^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12130093 and 12130102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4487 + ... + 6662.

Almost surely, 2^12130112 is an apocalyptic number.

It is an amenable number.

12130112 is an abundant number, since it is smaller than the sum of its proper divisors (13358788).

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

12130112 is a wasteful number, since it uses less digits than its factorization.

12130112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11178 (or 11168 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 12130112 is about 3482.8310323643. The cubic root of 12130112 is about 229.7673261372.

Adding to 12130112 its reverse (21103121), we get a palindrome (33233233).

The spelling of 12130112 in words is "twelve million, one hundred thirty thousand, one hundred twelve".