11000018917 has 2 divisors, whose sum is σ = 11000018918. Its totient is φ = 11000018916.

The previous prime is 11000018903. The next prime is 11000018989. The reversal of 11000018917 is 71981000011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7716041281 + 3283977636 = 87841^2 + 57306^2 .

It is a cyclic number.

It is not a de Polignac number, because 11000018917 - 2²⁷ = 10865801189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11000018017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500009458 + 5500009459.

It is an arithmetic number, because the mean of its divisors is an integer number (5500009459).

Almost surely, 2^11000018917 is an apocalyptic number.

It is an amenable number.

11000018917 is a deficient number, since it is larger than the sum of its proper divisors (1).

11000018917 is an equidigital number, since it uses as much as digits as its factorization.

11000018917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 28.

Adding to 11000018917 its reverse (71981000011), we get a palindrome (82981018928).

The spelling of 11000018917 in words is "eleven billion, eighteen thousand, nine hundred seventeen".