11700000205 has 16 divisors (see below), whose sum is σ = 14184278784. Its totient is φ = 9263917440.

The previous prime is 11700000199. The next prime is 11700000233. The reversal of 11700000205 is 50200000711.

It is not a de Polignac number, because 11700000205 - 2³ = 11700000197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1095240 + ... + 1105870.

It is an arithmetic number, because the mean of its divisors is an integer number (886517424).

Almost surely, 2^11700000205 is an apocalyptic number.

It is an amenable number.

11700000205 is a deficient number, since it is larger than the sum of its proper divisors (2484278579).

11700000205 is a wasteful number, since it uses less digits than its factorization.

11700000205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12876.

The product of its (nonzero) digits is 70, while the sum is 16.

Adding to 11700000205 its reverse (50200000711), we get a palindrome (61900000916).

The spelling of 11700000205 in words is "eleven billion, seven hundred million, two hundred five", and thus it is an aban number.