1003199999987 has 2 divisors, whose sum is σ = 1003199999988. Its totient is φ = 1003199999986.

The previous prime is 1003199999957. The next prime is 1003200000041. The reversal of 1003199999987 is 7899999913001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1003199999987 is a prime.

It is not a weakly prime, because it can be changed into another prime (1003199999927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501599999993 + 501599999994.

It is an arithmetic number, because the mean of its divisors is an integer number (501599999994).

Almost surely, 2^{1003199999987} is an apocalyptic number.

1003199999987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003199999987 is an equidigital number, since it uses as much as digits as its factorization.

1003199999987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 89282088, while the sum is 74.

The spelling of 1003199999987 in words is "one trillion, three billion, one hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred eighty-seven".