12103303001020 has 576 divisors, whose sum is σ = 34599458396160. Its totient is φ = 3452298854400.

The previous prime is 12103303001017. The next prime is 12103303001047. The reversal of 12103303001020 is 2010030330121.

It is a junction number, because it is equal to n+sod(n) for n = 12103303000985 and 12103303001003.

It is a congruent number.

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 191 ways as a sum of consecutive naturals, for example, 6441352441 + ... + 6441354319.

It is an arithmetic number, because the mean of its divisors is an integer number (60068504160).

Almost surely, 2^{12103303001020} is an apocalyptic number.

12103303001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12103303001020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17299729198080).

12103303001020 is an abundant number, since it is smaller than the sum of its proper divisors (22496155395140).

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

12103303001020 is a wasteful number, since it uses less digits than its factorization.

12103303001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334 (or 2315 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12103303001020 its reverse (2010030330121), we get a palindrome (14113333331141).

The spelling of 12103303001020 in words is "twelve trillion, one hundred three billion, three hundred three million, one thousand, twenty".