2100120330 has 128 divisors (see below), whose sum is σ = 6653767680. Its totient is φ = 410711040.

The previous prime is 2100120329. The next prime is 2100120349. The reversal of 2100120330 is 330210012.

It is a happy number.

2100120330 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12531 + ... + 66009.

It is an arithmetic number, because the mean of its divisors is an integer number (51982560).

Almost surely, 2^2100120330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2100120330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3326883840).

2100120330 is an abundant number, since it is smaller than the sum of its proper divisors (4553647350).

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

2100120330 is a wasteful number, since it uses less digits than its factorization.

2100120330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53524.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2100120330 is about 45827.0698386881. The cubic root of 2100120330 is about 1280.6036235824.

Adding to 2100120330 its reverse (330210012), we get a palindrome (2430330342).

The spelling of 2100120330 in words is "two billion, one hundred million, one hundred twenty thousand, three hundred thirty".