20001131123101 has 8 divisors (see below), whose sum is σ = 20031058918400. Its totient is φ = 19971208167120.

The previous prime is 20001131123089. The next prime is 20001131123123. The reversal of 20001131123101 is 10132113110002.

It is a happy number.

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 20001131123101 - 2⁵ = 20001131123069 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 (20001131120101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7105156 + ... + 9512386.

It is an arithmetic number, because the mean of its divisors is an integer number (2503882364800).

Almost surely, 2^{20001131123101} is an apocalyptic number.

It is an amenable number.

20001131123101 is a deficient number, since it is larger than the sum of its proper divisors (29927795299).

20001131123101 is a wasteful number, since it uses less digits than its factorization.

20001131123101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419659.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 20001131123101 its reverse (10132113110002), we get a palindrome (30133244233103).

The spelling of 20001131123101 in words is "twenty trillion, one billion, one hundred thirty-one million, one hundred twenty-three thousand, one hundred one".