120120030 has 144 divisors (see below), whose sum is σ = 346797360. Its totient is φ = 29582784.

The previous prime is 120119999. The next prime is 120120031. The reversal of 120120030 is 30021021.

It is a happy number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120119994 and 120120021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120120031) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4142056 + ... + 4142084.

It is an arithmetic number, because the mean of its divisors is an integer number (2408315).

Almost surely, 2^120120030 is an apocalyptic number.

120120030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 120120030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173398680).

120120030 is an abundant number, since it is smaller than the sum of its proper divisors (226677330).

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

120120030 is a wasteful number, since it uses less digits than its factorization.

120120030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 62 counting only the distinct ones).

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

The square root of 120120030 is about 10959.9283756784. The cubic root of 120120030 is about 493.4068153062.

Adding to 120120030 its reverse (30021021), we get a palindrome (150141051).

Subtracting from 120120030 its reverse (30021021), we obtain a palindrome (90099009).

The spelling of 120120030 in words is "one hundred twenty million, one hundred twenty thousand, thirty".