1002010020971 has 2 divisors, whose sum is σ = 1002010020972. Its totient is φ = 1002010020970.

The previous prime is 1002010020967. The next prime is 1002010021073. The reversal of 1002010020971 is 1790200102001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1002010020971 - 2² = 1002010020967 is a prime.

It is not a weakly prime, because it can be changed into another prime (1002010020911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501005010485 + 501005010486.

It is an arithmetic number, because the mean of its divisors is an integer number (501005010486).

Almost surely, 2^{1002010020971} is an apocalyptic number.

1002010020971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002010020971 is an equidigital number, since it uses as much as digits as its factorization.

1002010020971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 23.

Adding to 1002010020971 its reverse (1790200102001), we get a palindrome (2792210122972).

The spelling of 1002010020971 in words is "one trillion, two billion, ten million, twenty thousand, nine hundred seventy-one".