2123030220 has 24 divisors (see below), whose sum is σ = 5944484784. Its totient is φ = 566141376.

The previous prime is 2123030219. The next prime is 2123030233. The reversal of 2123030220 is 220303212.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2123030220.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17691859 + ... + 17691978.

It is an arithmetic number, because the mean of its divisors is an integer number (247686866).

Almost surely, 2^2123030220 is an apocalyptic number.

2123030220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123030220 is an abundant number, since it is smaller than the sum of its proper divisors (3821454564).

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

2123030220 is a wasteful number, since it uses less digits than its factorization.

2123030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35383849 (or 35383847 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2123030220 is about 46076.3520691471. The cubic root of 2123030220 is about 1285.2434286763.

Adding to 2123030220 its reverse (220303212), we get a palindrome (2343333432).

The spelling of 2123030220 in words is "two billion, one hundred twenty-three million, thirty thousand, two hundred twenty".