30120320120 has 128 divisors (see below), whose sum is σ = 74628449280. Its totient is φ = 10850112000.

The previous prime is 30120320117. The next prime is 30120320143. The reversal of 30120320120 is 2102302103.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30120320095 and 30120320104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33062465 + ... + 33063375.

It is an arithmetic number, because the mean of its divisors is an integer number (583034760).

Almost surely, 2^30120320120 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 30120320120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37314224640).

30120320120 is an abundant number, since it is smaller than the sum of its proper divisors (44508129160).

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

30120320120 is a wasteful number, since it uses less digits than its factorization.

30120320120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557 (or 1553 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 30120320120 its reverse (2102302103), we get a palindrome (32222622223).

The spelling of 30120320120 in words is "thirty billion, one hundred twenty million, three hundred twenty thousand, one hundred twenty".