11705205101 has 4 divisors (see below), whose sum is σ = 11713046652. Its totient is φ = 11697363552.

The previous prime is 11705205073. The next prime is 11705205121. The reversal of 11705205101 is 10150250711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10150250711 = 1607 ⋅6316273.

It can be written as a sum of positive squares in 2 ways, for example, as 10753482601 + 951722500 = 103699^2 + 30850^2 .

It is a cyclic number.

It is not a de Polignac number, because 11705205101 - 2²⁶ = 11638096237 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 (11705205121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3918536 + ... + 3921521.

It is an arithmetic number, because the mean of its divisors is an integer number (2928261663).

Almost surely, 2^11705205101 is an apocalyptic number.

It is an amenable number.

11705205101 is a deficient number, since it is larger than the sum of its proper divisors (7841551).

11705205101 is an equidigital number, since it uses as much as digits as its factorization.

11705205101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7841550.

The product of its (nonzero) digits is 350, while the sum is 23.

Adding to 11705205101 its reverse (10150250711), we get a palindrome (21855455812).

The spelling of 11705205101 in words is "eleven billion, seven hundred five million, two hundred five thousand, one hundred one".