1002002999971 has 2 divisors, whose sum is σ = 1002002999972. Its totient is φ = 1002002999970.

The previous prime is 1002002999953. The next prime is 1002003000043. The reversal of 1002002999971 is 1799992002001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002002999971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002002999951) 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, 501001499985 + 501001499986.

It is an arithmetic number, because the mean of its divisors is an integer number (501001499986).

Almost surely, 2^{1002002999971} is an apocalyptic number.

1002002999971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002002999971 is an equidigital number, since it uses as much as digits as its factorization.

1002002999971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 183708, while the sum is 49.

The spelling of 1002002999971 in words is "one trillion, two billion, two million, nine hundred ninety-nine thousand, nine hundred seventy-one".