20331000120101 has 6 divisors (see below), whose sum is σ = 22347297652806. Its totient is φ = 18482727381800.

The previous prime is 20331000120059. The next prime is 20331000120187. The reversal of 20331000120101 is 10102100013302.

It can be written as a sum of positive squares in only one way, i.e., 12862946385025 + 7468053735076 = 3586495^2 + 2732774^2 .

It is not a de Polignac number, because 20331000120101 - 2²⁶ = 20330933011237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20331000120001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84012397070 + ... + 84012397311.

It is an arithmetic number, because the mean of its divisors is an integer number (3724549608801).

Almost surely, 2^{20331000120101} is an apocalyptic number.

It is an amenable number.

20331000120101 is a deficient number, since it is larger than the sum of its proper divisors (2016297532705).

20331000120101 is a wasteful number, since it uses less digits than its factorization.

20331000120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168024794403 (or 168024794392 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20331000120101 its reverse (10102100013302), we get a palindrome (30433100133403).

The spelling of 20331000120101 in words is "twenty trillion, three hundred thirty-one billion, one hundred twenty thousand, one hundred one".