20121303123300 has 144 divisors (see below), whose sum is σ = 60657269686272. Its totient is φ = 5144065180800.

The previous prime is 20121303123287. The next prime is 20121303123319. The reversal of 20121303123300 is 332130312102.

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 47 ways as a sum of consecutive naturals, for example, 9115092 + ... + 11105291.

It is an arithmetic number, because the mean of its divisors is an integer number (421231039488).

Almost surely, 2^{20121303123300} is an apocalyptic number.

20121303123300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20121303123300 is an abundant number, since it is smaller than the sum of its proper divisors (40535966562972).

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

20121303123300 is a wasteful number, since it uses less digits than its factorization.

20121303123300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20220538 (or 20220531 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20121303123300 its reverse (332130312102), we get a palindrome (20453433435402).

The spelling of 20121303123300 in words is "twenty trillion, one hundred twenty-one billion, three hundred three million, one hundred twenty-three thousand, three hundred".