30130120 has 64 divisors (see below), whose sum is σ = 73094400. Its totient is φ = 11136000.

The previous prime is 30130117. The next prime is 30130151. The reversal of 30130120 is 2103103.

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 = 30130097 and 30130106.

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, 39745 + ... + 40495.

It is an arithmetic number, because the mean of its divisors is an integer number (1142100).

Almost surely, 2^30130120 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 30130120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36547200).

30130120 is an abundant number, since it is smaller than the sum of its proper divisors (42964280).

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

30130120 is a wasteful number, since it uses less digits than its factorization.

30130120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 30130120 is about 5489.0909994279. The cubic root of 30130120 is about 311.1718394301.

Adding to 30130120 its reverse (2103103), we get a palindrome (32233223).

The spelling of 30130120 in words is "thirty million, one hundred thirty thousand, one hundred twenty".