101001100100101 has 4 divisors (see below), whose sum is σ = 101002146547392. Its totient is φ = 101000053652812.

The previous prime is 101001100100081. The next prime is 101001100100209. The reversal of 101001100100101 is 101001001100101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101001100100101 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 (101001100800101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523078855 + ... + 523271908.

It is an arithmetic number, because the mean of its divisors is an integer number (25250536636848).

Almost surely, 2^{101001100100101} is an apocalyptic number.

It is an amenable number.

101001100100101 is a deficient number, since it is larger than the sum of its proper divisors (1046447291).

101001100100101 is an equidigital number, since it uses as much as digits as its factorization.

101001100100101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046447290.

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

Adding to 101001100100101 its reverse (101001001100101), we get a palindrome (202002101200202).

The spelling of 101001100100101 in words is "one hundred one trillion, one billion, one hundred million, one hundred thousand, one hundred one".