11881118819 has 2 divisors, whose sum is σ = 11881118820. Its totient is φ = 11881118818.

The previous prime is 11881118783. The next prime is 11881118833. The reversal of 11881118819 is 91881118811.

11881118819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (91881118811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11881118819 - 2³² = 7586151523 is a prime.

It is a super-2 number, since 2×11881118819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11881118419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5940559409 + 5940559410.

It is an arithmetic number, because the mean of its divisors is an integer number (5940559410).

Almost surely, 2^11881118819 is an apocalyptic number.

11881118819 is a deficient number, since it is larger than the sum of its proper divisors (1).

11881118819 is an equidigital number, since it uses as much as digits as its factorization.

11881118819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 47.

The spelling of 11881118819 in words is "eleven billion, eight hundred eighty-one million, one hundred eighteen thousand, eight hundred nineteen".