111101011010987 has 2 divisors, whose sum is σ = 111101011010988. Its totient is φ = 111101011010986.

The previous prime is 111101011010963. The next prime is 111101011011037. The reversal of 111101011010987 is 789010110101111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111101011010987 - 2²⁸ = 111100742575531 is a prime.

It is not a weakly prime, because it can be changed into another prime (111101011030987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550505505493 + 55550505505494.

It is an arithmetic number, because the mean of its divisors is an integer number (55550505505494).

Almost surely, 2^{111101011010987} is an apocalyptic number.

111101011010987 is a deficient number, since it is larger than the sum of its proper divisors (1).

111101011010987 is an equidigital number, since it uses as much as digits as its factorization.

111101011010987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 32.

The spelling of 111101011010987 in words is "one hundred eleven trillion, one hundred one billion, eleven million, ten thousand, nine hundred eighty-seven".