11808308111 has 2 divisors, whose sum is σ = 11808308112. Its totient is φ = 11808308110.

The previous prime is 11808308107. The next prime is 11808308191. The reversal of 11808308111 is 11180380811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11808308111 - 2² = 11808308107 is a prime.

It is a super-2 number, since 2×11808308111² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11808308101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5904154055 + 5904154056.

It is an arithmetic number, because the mean of its divisors is an integer number (5904154056).

Almost surely, 2^11808308111 is an apocalyptic number.

11808308111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11808308111 is an equidigital number, since it uses as much as digits as its factorization.

11808308111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 32.

Adding to 11808308111 its reverse (11180380811), we get a palindrome (22988688922).

The spelling of 11808308111 in words is "eleven billion, eight hundred eight million, three hundred eight thousand, one hundred eleven".