11800500011 has 2 divisors, whose sum is σ = 11800500012. Its totient is φ = 11800500010.

The previous prime is 11800500001. The next prime is 11800500013. The reversal of 11800500011 is 11000500811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11800500011 - 2¹⁴ = 11800483627 is a prime.

It is a super-2 number, since 2×11800500011² (a number of 21 digits) contains 22 as substring.

Together with 11800500013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11800500013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5900250005 + 5900250006.

It is an arithmetic number, because the mean of its divisors is an integer number (5900250006).

Almost surely, 2^11800500011 is an apocalyptic number.

11800500011 is a deficient number, since it is larger than the sum of its proper divisors (1).

11800500011 is an equidigital number, since it uses as much as digits as its factorization.

11800500011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 17.

The spelling of 11800500011 in words is "eleven billion, eight hundred million, five hundred thousand, eleven".