1001200000987 has 2 divisors, whose sum is σ = 1001200000988. Its totient is φ = 1001200000986.

The previous prime is 1001200000949. The next prime is 1001200001051. The reversal of 1001200000987 is 7890000021001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1001200000987 - 2⁷ = 1001200000859 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001200000937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500600000493 + 500600000494.

It is an arithmetic number, because the mean of its divisors is an integer number (500600000494).

Almost surely, 2^{1001200000987} is an apocalyptic number.

1001200000987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001200000987 is an equidigital number, since it uses as much as digits as its factorization.

1001200000987 is an evil number, because the sum of its binary digits is even.

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

Adding to 1001200000987 its reverse (7890000021001), we get a palindrome (8891200021988).

The spelling of 1001200000987 in words is "one trillion, one billion, two hundred million, nine hundred eighty-seven", and thus it is an aban number.