100101010100101 has 8 divisors (see below), whose sum is σ = 104212340851320. Its totient is φ = 96033650801088.

The previous prime is 100101010100081. The next prime is 100101010100111. The reversal of 100101010100101 is 101001010101001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 21337248839076 + 78763761261025 = 4619226^2 + 8874895^2 .

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 100101010100101 - 2³³ = 100092420165509 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 (100101010100111) 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, 10992858406 + ... + 10992867511.

It is an arithmetic number, because the mean of its divisors is an integer number (13026542606415).

Almost surely, 2^{100101010100101} is an apocalyptic number.

It is an amenable number.

100101010100101 is a deficient number, since it is larger than the sum of its proper divisors (4111330751219).

100101010100101 is a wasteful number, since it uses less digits than its factorization.

100101010100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21985726103.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 100101010100101 its reverse (101001010101001), we get a palindrome (201102020201102).

The spelling of 100101010100101 in words is "one hundred trillion, one hundred one billion, ten million, one hundred thousand, one hundred one".