12103030220 has 24 divisors (see below), whose sum is σ = 25442260704. Its totient is φ = 4836279296.

The previous prime is 12103030171. The next prime is 12103030237. The reversal of 12103030220 is 2203030121.

It is a happy number.

12103030220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12103030195 and 12103030204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288149 + ... + 327468.

It is an arithmetic number, because the mean of its divisors is an integer number (1060094196).

Almost surely, 2^12103030220 is an apocalyptic number.

12103030220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103030220 is an abundant number, since it is smaller than the sum of its proper divisors (13339230484).

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

12103030220 is a wasteful number, since it uses less digits than its factorization.

12103030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616609 (or 616607 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12103030220 its reverse (2203030121), we get a palindrome (14306060341).

Subtracting from 12103030220 its reverse (2203030121), we obtain a palindrome (9900000099).

The spelling of 12103030220 in words is "twelve billion, one hundred three million, thirty thousand, two hundred twenty".