111009944579 has 2 divisors, whose sum is σ = 111009944580. Its totient is φ = 111009944578.

The previous prime is 111009944557. The next prime is 111009944581. The reversal of 111009944579 is 975449900111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111009944579 is a prime.

Together with 111009944581, 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 (111009947579) 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, 55504972289 + 55504972290.

It is an arithmetic number, because the mean of its divisors is an integer number (55504972290).

Almost surely, 2^111009944579 is an apocalyptic number.

111009944579 is a deficient number, since it is larger than the sum of its proper divisors (1).

111009944579 is an equidigital number, since it uses as much as digits as its factorization.

111009944579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 50.

The spelling of 111009944579 in words is "one hundred eleven billion, nine million, nine hundred forty-four thousand, five hundred seventy-nine".