12102030020 has 48 divisors (see below), whose sum is σ = 26304445440. Its totient is φ = 4671429504.

The previous prime is 12102030007. The next prime is 12102030071. The reversal of 12102030020 is 2003020121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12102029983 and 12102030010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1414997 + ... + 1423523.

It is an arithmetic number, because the mean of its divisors is an integer number (548009280).

Almost surely, 2^12102030020 is an apocalyptic number.

12102030020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102030020 is an abundant number, since it is smaller than the sum of its proper divisors (14202415420).

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

12102030020 is a wasteful number, since it uses less digits than its factorization.

12102030020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11012 (or 11010 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 12102030020 its reverse (2003020121), we get a palindrome (14105050141).

The spelling of 12102030020 in words is "twelve billion, one hundred two million, thirty thousand, twenty".