20001323032101 has 12 divisors (see below), whose sum is σ = 30590258755212. Its totient is φ = 12549849745536.

The previous prime is 20001323032099. The next prime is 20001323032129. The reversal of 20001323032101 is 10123032310002.

20001323032101 is a `hidden beast` number, since 20 + 0 + 0 + 1 + 323 + 0 + 321 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6803614923876 + 13197708108225 = 2608374^2 + 3632865^2 .

It is not a de Polignac number, because 20001323032101 - 2¹ = 20001323032099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001323032181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65363800606 + ... + 65363800911.

It is an arithmetic number, because the mean of its divisors is an integer number (2549188229601).

Almost surely, 2^{20001323032101} is an apocalyptic number.

It is an amenable number.

20001323032101 is a deficient number, since it is larger than the sum of its proper divisors (10588935723111).

20001323032101 is a wasteful number, since it uses less digits than its factorization.

20001323032101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130727601540 (or 130727601537 counting only the distinct ones).

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

Adding to 20001323032101 its reverse (10123032310002), we get a palindrome (30124355342103).

The spelling of 20001323032101 in words is "twenty trillion, one billion, three hundred twenty-three million, thirty-two thousand, one hundred one".