20100910910101 has 32 divisors (see below), whose sum is σ = 25822341734400. Its totient is φ = 15251320405440.

The previous prime is 20100910910071. The next prime is 20100910910107. The reversal of 20100910910101 is 10101901900102.

It is not a de Polignac number, because 20100910910101 - 2¹³ = 20100910901909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100910910107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83937535 + ... + 84176668.

It is an arithmetic number, because the mean of its divisors is an integer number (806948179200).

Almost surely, 2^{20100910910101} is an apocalyptic number.

It is an amenable number.

20100910910101 is a deficient number, since it is larger than the sum of its proper divisors (5721430824299).

20100910910101 is a wasteful number, since it uses less digits than its factorization.

20100910910101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168114289.

The product of its (nonzero) digits is 162, while the sum is 25.

Subtracting from 20100910910101 its reverse (10101901900102), we obtain a palindrome (9999009009999).

The spelling of 20100910910101 in words is "twenty trillion, one hundred billion, nine hundred ten million, nine hundred ten thousand, one hundred one".