12001300010020 has 24 divisors (see below), whose sum is σ = 26071789678200. Its totient is φ = 4634984831232.

The previous prime is 12001300010003. The next prime is 12001300010033. The reversal of 12001300010020 is 2001000310021.

It can be written as a sum of positive squares in 4 ways, for example, as 235521913636 + 11765778096384 = 485306^2 + 3430128^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12001300009979 and 12001300010006.

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, 10345947705 + ... + 10345948864.

It is an arithmetic number, because the mean of its divisors is an integer number (1086324569925).

Almost surely, 2^{12001300010020} is an apocalyptic number.

12001300010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001300010020 is an abundant number, since it is smaller than the sum of its proper divisors (14070489668180).

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

12001300010020 is a wasteful number, since it uses less digits than its factorization.

12001300010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20691896607 (or 20691896605 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 12001300010020 its reverse (2001000310021), we get a palindrome (14002300320041).

The spelling of 12001300010020 in words is "twelve trillion, one billion, three hundred million, ten thousand, twenty".