111000111100987 has 2 divisors, whose sum is σ = 111000111100988. Its totient is φ = 111000111100986.

The previous prime is 111000111100981. The next prime is 111000111100997. The reversal of 111000111100987 is 789001111000111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111000111100987 - 2¹⁵ = 111000111068219 is a prime.

It is a super-3 number, since 3×111000111100987³ (a number of 43 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (111000111100981) 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, 55500055550493 + 55500055550494.

It is an arithmetic number, because the mean of its divisors is an integer number (55500055550494).

Almost surely, 2^{111000111100987} is an apocalyptic number.

111000111100987 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000111100987 is an equidigital number, since it uses as much as digits as its factorization.

111000111100987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 31.

The spelling of 111000111100987 in words is "one hundred eleven trillion, one hundred eleven million, one hundred thousand, nine hundred eighty-seven".