11800500611 has 2 divisors, whose sum is σ = 11800500612. Its totient is φ = 11800500610.

The previous prime is 11800500599. The next prime is 11800500637. The reversal of 11800500611 is 11600500811.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (11600500811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11800500611 - 2¹⁸ = 11800238467 is a prime.

It is a super-2 number, since 2×11800500611² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11800500011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5900250305 + 5900250306.

It is an arithmetic number, because the mean of its divisors is an integer number (5900250306).

Almost surely, 2^11800500611 is an apocalyptic number.

11800500611 is a deficient number, since it is larger than the sum of its proper divisors (1).

11800500611 is an equidigital number, since it uses as much as digits as its factorization.

11800500611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 23.

The spelling of 11800500611 in words is "eleven billion, eight hundred million, five hundred thousand, six hundred eleven".