12030120 has 160 divisors (see below), whose sum is σ = 41817600. Its totient is φ = 3100032.

The previous prime is 12030119. The next prime is 12030121. The reversal of 12030120 is 2103021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12030119) and next prime (12030121).

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

It is not an unprimeable number, because it can be changed into a prime (12030121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 152241 + ... + 152319.

It is an arithmetic number, because the mean of its divisors is an integer number (261360).

Almost surely, 2^12030120 is an apocalyptic number.

12030120 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 12030120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20908800).

12030120 is an abundant number, since it is smaller than the sum of its proper divisors (29787480).

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

12030120 is a wasteful number, since it uses less digits than its factorization.

12030120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 136 counting only the distinct ones).

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

The square root of 12030120 is about 3468.4463380597. The cubic root of 12030120 is about 229.1342373212.

Adding to 12030120 its reverse (2103021), we get a palindrome (14133141).

The spelling of 12030120 in words is "twelve million, thirty thousand, one hundred twenty".