111000100999987 has 2 divisors, whose sum is σ = 111000100999988. Its totient is φ = 111000100999986.

The previous prime is 111000100999981. The next prime is 111000101000017. The reversal of 111000100999987 is 789999001000111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111000100999987 - 2⁷ = 111000100999859 is a prime.

It is not a weakly prime, because it can be changed into another prime (111000100999981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500050499993 + 55500050499994.

It is an arithmetic number, because the mean of its divisors is an integer number (55500050499994).

Almost surely, 2^{111000100999987} is an apocalyptic number.

111000100999987 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000100999987 is an equidigital number, since it uses as much as digits as its factorization.

111000100999987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 55.

The spelling of 111000100999987 in words is "one hundred eleven trillion, one hundred million, nine hundred ninety-nine thousand, nine hundred eighty-seven".