11321008987 has 2 divisors, whose sum is σ = 11321008988. Its totient is φ = 11321008986.

The previous prime is 11321008973. The next prime is 11321009129. The reversal of 11321008987 is 78980012311.

11321008987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11321008987 - 2²³ = 11312620379 is a prime.

It is not a weakly prime, because it can be changed into another prime (11321008967) 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, 5660504493 + 5660504494.

It is an arithmetic number, because the mean of its divisors is an integer number (5660504494).

Almost surely, 2^11321008987 is an apocalyptic number.

11321008987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321008987 is an equidigital number, since it uses as much as digits as its factorization.

11321008987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 40.

The spelling of 11321008987 in words is "eleven billion, three hundred twenty-one million, eight thousand, nine hundred eighty-seven".