12180030 has 32 divisors (see below), whose sum is σ = 30024864. Its totient is φ = 3159936.

The previous prime is 12180013. The next prime is 12180031. The reversal of 12180030 is 3008121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 12179991 and 12180009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12180031) 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, 4377 + ... + 6596.

It is an arithmetic number, because the mean of its divisors is an integer number (938277).

Almost surely, 2^12180030 is an apocalyptic number.

12180030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12180030 is an abundant number, since it is smaller than the sum of its proper divisors (17844834).

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

12180030 is a wasteful number, since it uses less digits than its factorization.

12180030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11020.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 12180030 is about 3489.9899713323. The cubic root of 12180030 is about 230.0820753079.

Adding to 12180030 its reverse (3008121), we get a palindrome (15188151).

The spelling of 12180030 in words is "twelve million, one hundred eighty thousand, thirty".