102011001010101 has 6 divisors (see below), whose sum is σ = 147349223681270. Its totient is φ = 68007334006728.

The previous prime is 102011001010099. The next prime is 102011001010111. The reversal of 102011001010101 is 101010100110201.

It can be written as a sum of positive squares in only one way, i.e., 87675319520100 + 14335681490001 = 9363510^2 + 3786249^2 .

It is not a de Polignac number, because 102011001010101 - 2¹ = 102011001010099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 11334555667789 = 102011001010101 / (1 + 0 + 2 + 0 + 1 + 1 + 0 + 0 + 1 + 0 + 1 + 0 + 1 + 0 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102011001010111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5667277833886 + ... + 5667277833903.

Almost surely, 2^{102011001010101} is an apocalyptic number.

It is an amenable number.

102011001010101 is a deficient number, since it is larger than the sum of its proper divisors (45338222671169).

102011001010101 is a wasteful number, since it uses less digits than its factorization.

102011001010101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11334555667795 (or 11334555667792 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 102011001010101 its reverse (101010100110201), we get a palindrome (203021101120302).

The spelling of 102011001010101 in words is "one hundred two trillion, eleven billion, one million, ten thousand, one hundred one".