1111000109987 has 2 divisors, whose sum is σ = 1111000109988. Its totient is φ = 1111000109986.

The previous prime is 1111000109971. The next prime is 1111000110029. The reversal of 1111000109987 is 7899010001111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111000109987 - 2⁴ = 1111000109971 is a prime.

It is a super-2 number, since 2×1111000109987² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1111000109987.

It is not a weakly prime, because it can be changed into another prime (1111000109927) 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, 555500054993 + 555500054994.

It is an arithmetic number, because the mean of its divisors is an integer number (555500054994).

Almost surely, 2^{1111000109987} is an apocalyptic number.

1111000109987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111000109987 is an equidigital number, since it uses as much as digits as its factorization.

1111000109987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 38.

The spelling of 1111000109987 in words is "one trillion, one hundred eleven billion, one hundred nine thousand, nine hundred eighty-seven".