20323013000121 has 24 divisors (see below), whose sum is σ = 31620865840200. Its totient is φ = 12503585558016.

The previous prime is 20323013000119. The next prime is 20323013000137. The reversal of 20323013000121 is 12100031032302.

20323013000121 is a `hidden beast` number, since 20 + 32 + 301 + 300 + 0 + 12 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 44301830400 + 20278711169721 = 210480^2 + 4503189^2 .

It is not a de Polignac number, because 20323013000121 - 2¹ = 20323013000119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20323013000094 and 20323013000103.

It is not an unprimeable number, because it can be changed into a prime (20323013000321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19518046 + ... + 20532903.

It is an arithmetic number, because the mean of its divisors is an integer number (1317536076675).

Almost surely, 2^{20323013000121} is an apocalyptic number.

It is an amenable number.

20323013000121 is a deficient number, since it is larger than the sum of its proper divisors (11297852840079).

20323013000121 is a wasteful number, since it uses less digits than its factorization.

20323013000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40055305 (or 40055302 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20323013000121 its reverse (12100031032302), we get a palindrome (32423044032423).

The spelling of 20323013000121 in words is "twenty trillion, three hundred twenty-three billion, thirteen million, one hundred twenty-one", and thus it is an aban number.