120930 has 32 divisors (see below), whose sum is σ = 302400. Its totient is φ = 30912.

The previous prime is 120929. The next prime is 120937. The reversal of 120930 is 39021.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 120930.

It is not an unprimeable number, because it can be changed into a prime (120937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 801 + ... + 939.

It is an arithmetic number, because the mean of its divisors is an integer number (9450).

2¹²⁰⁹³⁰ is an apocalyptic number.

120930 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 120930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151200).

120930 is an abundant number, since it is smaller than the sum of its proper divisors (181470).

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

120930 is a wasteful number, since it uses less digits than its factorization.

120930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 120930 is about 347.7499101366. The cubic root of 120930 is about 49.4513346830.

Adding to 120930 its reverse (39021), we get a palindrome (159951).

The spelling of 120930 in words is "one hundred twenty thousand, nine hundred thirty".