111000559987 has 2 divisors, whose sum is σ = 111000559988. Its totient is φ = 111000559986.

The previous prime is 111000559973. The next prime is 111000559991. The reversal of 111000559987 is 789955000111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111000559987 - 2¹¹ = 111000557939 is a prime.

It is a super-2 number, since 2×111000559987² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111000559907) 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, 55500279993 + 55500279994.

It is an arithmetic number, because the mean of its divisors is an integer number (55500279994).

Almost surely, 2^111000559987 is an apocalyptic number.

111000559987 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000559987 is an equidigital number, since it uses as much as digits as its factorization.

111000559987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 46.

The spelling of 111000559987 in words is "one hundred eleven billion, five hundred fifty-nine thousand, nine hundred eighty-seven".