201101110100101 has 4 divisors (see below), whose sum is σ = 203092210200204. Its totient is φ = 199110010000000.

The previous prime is 201101110100071. The next prime is 201101110100153. The reversal of 201101110100101 is 101001011101102.

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 132193678997601 + 68907431102500 = 11497551^2 + 8301050^2 .

It is a cyclic number.

It is not a de Polignac number, because 201101110100101 - 2²³ = 201101101711493 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 (201101110100161) 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, 995550049900 + ... + 995550050101.

It is an arithmetic number, because the mean of its divisors is an integer number (50773052550051).

Almost surely, 2^{201101110100101} is an apocalyptic number.

It is an amenable number.

201101110100101 is a deficient number, since it is larger than the sum of its proper divisors (1991100100103).

201101110100101 is a wasteful number, since it uses less digits than its factorization.

201101110100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1991100100102.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 201101110100101 its reverse (101001011101102), we get a palindrome (302102121201203).

The spelling of 201101110100101 in words is "two hundred one trillion, one hundred one billion, one hundred ten million, one hundred thousand, one hundred one".