20010231333101 has 4 divisors (see below), whose sum is σ = 20010270642492. Its totient is φ = 20010192023712.

The previous prime is 20010231333089. The next prime is 20010231333133. The reversal of 20010231333101 is 10133313201002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19504853944900 + 505377388201 = 4416430^2 + 710899^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20010231333101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010231333181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18880976 + ... + 19912601.

It is an arithmetic number, because the mean of its divisors is an integer number (5002567660623).

Almost surely, 2^{20010231333101} is an apocalyptic number.

It is an amenable number.

20010231333101 is a deficient number, since it is larger than the sum of its proper divisors (39309391).

20010231333101 is an equidigital number, since it uses as much as digits as its factorization.

20010231333101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39309390.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 20010231333101 its reverse (10133313201002), we get a palindrome (30143544534103).

The spelling of 20010231333101 in words is "twenty trillion, ten billion, two hundred thirty-one million, three hundred thirty-three thousand, one hundred one".