11111108888851 has 2 divisors, whose sum is σ = 11111108888852. Its totient is φ = 11111108888850.

The previous prime is 11111108888849. The next prime is 11111108888861. The reversal of 11111108888851 is 15888880111111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11111108888851 - 2¹ = 11111108888849 is a prime.

Together with 11111108888849, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11111108888861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555554444425 + 5555554444426.

It is an arithmetic number, because the mean of its divisors is an integer number (5555554444426).

Almost surely, 2^{11111108888851} is an apocalyptic number.

11111108888851 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111108888851 is an equidigital number, since it uses as much as digits as its factorization.

11111108888851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163840, while the sum is 52.

Adding to 11111108888851 its reverse (15888880111111), we get a palindrome (26999988999962).

The spelling of 11111108888851 in words is "eleven trillion, one hundred eleven billion, one hundred eight million, eight hundred eighty-eight thousand, eight hundred fifty-one".