102101111001101 has 4 divisors (see below), whose sum is σ = 103004660656092. Its totient is φ = 101197561346112.

The previous prime is 102101111001061. The next prime is 102101111001139. The reversal of 102101111001101 is 101100111101201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4184663466025 + 97916447535076 = 2045645^2 + 9895274^2 .

It is a cyclic number.

It is not a de Polignac number, because 102101111001101 - 2³⁰ = 102100037259277 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 (102101111001151) 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, 451774827326 + ... + 451774827551.

It is an arithmetic number, because the mean of its divisors is an integer number (25751165164023).

Almost surely, 2^{102101111001101} is an apocalyptic number.

It is an amenable number.

102101111001101 is a deficient number, since it is larger than the sum of its proper divisors (903549654991).

102101111001101 is an equidigital number, since it uses as much as digits as its factorization.

102101111001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903549654990.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 102101111001101 its reverse (101100111101201), we get a palindrome (203201222102302).

The spelling of 102101111001101 in words is "one hundred two trillion, one hundred one billion, one hundred eleven million, one thousand, one hundred one".