201134612105020 has 96 divisors (see below), whose sum is σ = 465534062465472. Its totient is φ = 72386016000000.

The previous prime is 201134612104999. The next prime is 201134612105051. The reversal of 201134612105020 is 20501216431102.

It is a self number, because there is not a number n which added to its sum of digits gives 201134612105020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52384870 + ... + 56093170.

It is an arithmetic number, because the mean of its divisors is an integer number (4849313150682).

Almost surely, 2^{201134612105020} is an apocalyptic number.

201134612105020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201134612105020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232767031232736).

201134612105020 is an abundant number, since it is smaller than the sum of its proper divisors (264399450360452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201134612105020 is a wasteful number, since it uses less digits than its factorization.

201134612105020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3710863 (or 3710861 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 201134612105020 its reverse (20501216431102), we get a palindrome (221635828536122).

The spelling of 201134612105020 in words is "two hundred one trillion, one hundred thirty-four billion, six hundred twelve million, one hundred five thousand, twenty".