30112120 has 16 divisors (see below), whose sum is σ = 67752360. Its totient is φ = 12044832.

The previous prime is 30112111. The next prime is 30112123. The reversal of 30112120 is 2121103.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 30112097 and 30112106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376362 + ... + 376441.

Almost surely, 2^30112120 is an apocalyptic number.

It is an amenable number.

30112120 is an abundant number, since it is smaller than the sum of its proper divisors (37640240).

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

30112120 is a wasteful number, since it uses less digits than its factorization.

30112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752814 (or 752810 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 30112120 is about 5487.4511387346. The cubic root of 30112120 is about 311.1098614840.

Adding to 30112120 its reverse (2121103), we get a palindrome (32233223).

It can be divided in two parts, 301 and 12120, that added together give a palindrome (12421).

The spelling of 30112120 in words is "thirty million, one hundred twelve thousand, one hundred twenty".