30124120 has 64 divisors (see below), whose sum is σ = 76860000. Its totient is φ = 10533888.

The previous prime is 30124117. The next prime is 30124163. The reversal of 30124120 is 2142103.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 30124120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8356 + ... + 11404.

Almost surely, 2^30124120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30124120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38430000).

30124120 is an abundant number, since it is smaller than the sum of its proper divisors (46735880).

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

30124120 is a wasteful number, since it uses less digits than its factorization.

30124120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3092 (or 3088 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 30124120 is about 5488.5444336363. The cubic root of 30124120 is about 311.1511828581.

Adding to 30124120 its reverse (2142103), we get a palindrome (32266223).

The spelling of 30124120 in words is "thirty million, one hundred twenty-four thousand, one hundred twenty".