30000120120 has 128 divisors (see below), whose sum is σ = 100553544000. Its totient is φ = 7955781120.

The previous prime is 30000120097. The next prime is 30000120229. The reversal of 30000120120 is 2102100003.

It is a happy number.

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

30000120120 is a modest number, since divided by 120120 gives 30000 as remainder.

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, 118746 + ... + 272214.

Almost surely, 2^30000120120 is an apocalyptic number.

30000120120 is a gapful number since it is divisible by the number (30) 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 30000120120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50276772000).

30000120120 is an abundant number, since it is smaller than the sum of its proper divisors (70553423880).

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

30000120120 is a wasteful number, since it uses less digits than its factorization.

30000120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153670 (or 153660 counting only the distinct ones).

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

Adding to 30000120120 its reverse (2102100003), we get a palindrome (32102220123).

The spelling of 30000120120 in words is "thirty billion, one hundred twenty thousand, one hundred twenty".