20117521140101 has 48 divisors (see below), whose sum is σ = 25700094268800. Its totient is φ = 15298452443520.

The previous prime is 20117521140029. The next prime is 20117521140139. The reversal of 20117521140101 is 10104112571102.

It is not a de Polignac number, because 20117521140101 - 2²⁶ = 20117454031237 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20117521140401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59193011 + ... + 59531903.

It is an arithmetic number, because the mean of its divisors is an integer number (535418630600).

Almost surely, 2^{20117521140101} is an apocalyptic number.

It is an amenable number.

20117521140101 is a deficient number, since it is larger than the sum of its proper divisors (5582573128699).

20117521140101 is a wasteful number, since it uses less digits than its factorization.

20117521140101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339354 (or 339307 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 26.

The spelling of 20117521140101 in words is "twenty trillion, one hundred seventeen billion, five hundred twenty-one million, one hundred forty thousand, one hundred one".