10021000987 has 2 divisors, whose sum is σ = 10021000988. Its totient is φ = 10021000986.

The previous prime is 10021000981. The next prime is 10021000991. The reversal of 10021000987 is 78900012001.

10021000987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10021000987 - 2¹⁹ = 10020476699 is a prime.

It is not a weakly prime, because it can be changed into another prime (10021000981) 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, 5010500493 + 5010500494.

It is an arithmetic number, because the mean of its divisors is an integer number (5010500494).

Almost surely, 2^10021000987 is an apocalyptic number.

10021000987 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021000987 is an equidigital number, since it uses as much as digits as its factorization.

10021000987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

Adding to 10021000987 its reverse (78900012001), we get a palindrome (88921012988).

The spelling of 10021000987 in words is "ten billion, twenty-one million, nine hundred eighty-seven", and thus it is an aban number.