11000009999987 has 2 divisors, whose sum is σ = 11000009999988. Its totient is φ = 11000009999986.

The previous prime is 11000009999959. The next prime is 11000010000019. The reversal of 11000009999987 is 78999990000011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11000009999987 - 2²² = 11000005805683 is a prime.

It is not a weakly prime, because it can be changed into another prime (11000009992987) 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, 5500004999993 + 5500004999994.

It is an arithmetic number, because the mean of its divisors is an integer number (5500004999994).

Almost surely, 2^{11000009999987} is an apocalyptic number.

11000009999987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11000009999987 is an equidigital number, since it uses as much as digits as its factorization.

11000009999987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3306744, while the sum is 62.

Adding to 11000009999987 its reverse (78999990000011), we get a palindrome (89999999999998).

The spelling of 11000009999987 in words is "eleven trillion, nine million, nine hundred ninety-nine thousand, nine hundred eighty-seven".