11011009987 has 2 divisors, whose sum is σ = 11011009988. Its totient is φ = 11011009986.

The previous prime is 11011009951. The next prime is 11011010053. The reversal of 11011009987 is 78990011011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11011009987 - 2¹⁹ = 11010485699 is a prime.

It is not a weakly prime, because it can be changed into another prime (11011009687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505504993 + 5505504994.

It is an arithmetic number, because the mean of its divisors is an integer number (5505504994).

Almost surely, 2^11011009987 is an apocalyptic number.

11011009987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011009987 is an equidigital number, since it uses as much as digits as its factorization.

11011009987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 37.

The spelling of 11011009987 in words is "eleven billion, eleven million, nine thousand, nine hundred eighty-seven".