20211210000013 has 8 divisors (see below), whose sum is σ = 20261973240000. Its totient is φ = 20160510097728.

The previous prime is 20211210000001. The next prime is 20211210000073. The reversal of 20211210000013 is 31000001211202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20211210000013 - 2¹³ = 20211209991821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20211209999948 and 20211210000002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211210000073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15195388 + ... + 16471861.

It is an arithmetic number, because the mean of its divisors is an integer number (2532746655000).

Almost surely, 2^{20211210000013} is an apocalyptic number.

It is an amenable number.

20211210000013 is a deficient number, since it is larger than the sum of its proper divisors (50763239987).

20211210000013 is an equidigital number, since it uses as much as digits as its factorization.

20211210000013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31668851.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20211210000013 its reverse (31000001211202), we get a palindrome (51211211211215).

The spelling of 20211210000013 in words is "twenty trillion, two hundred eleven billion, two hundred ten million, thirteen", and thus it is an aban number.