11800000811 has 2 divisors, whose sum is σ = 11800000812. Its totient is φ = 11800000810.

The previous prime is 11800000783. The next prime is 11800000813.

11800000811 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 11800000811 - 2¹⁸ = 11799738667 is a prime.

Together with 11800000813, it forms a pair of twin primes.

It is a Chen prime.

11800000811 is a strobogrammatic number because it is the same when read upside-down.

It is not a weakly prime, because it can be changed into another prime (11800000813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5900000405 + 5900000406.

It is an arithmetic number, because the mean of its divisors is an integer number (5900000406).

Almost surely, 2^11800000811 is an apocalyptic number.

11800000811 is a deficient number, since it is larger than the sum of its proper divisors (1).

11800000811 is an equidigital number, since it uses as much as digits as its factorization.

11800000811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 20.

It can be divided in two parts, 11800000 and 811, that added together give a palindrome (11800811).

The spelling of 11800000811 in words is "eleven billion, eight hundred million, eight hundred eleven", and thus it is an aban number.