11011002199987 has 2 divisors, whose sum is σ = 11011002199988. Its totient is φ = 11011002199986.

The previous prime is 11011002199979. The next prime is 11011002199997. The reversal of 11011002199987 is 78999120011011.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11011002199987 - 2³ = 11011002199979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11011002199987.

It is not a weakly prime, because it can be changed into another prime (11011002199997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505501099993 + 5505501099994.

It is an arithmetic number, because the mean of its divisors is an integer number (5505501099994).

Almost surely, 2^{11011002199987} is an apocalyptic number.

11011002199987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011002199987 is an equidigital number, since it uses as much as digits as its factorization.

11011002199987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 49.

The spelling of 11011002199987 in words is "eleven trillion, eleven billion, two million, one hundred ninety-nine thousand, nine hundred eighty-seven".