1001020001171 has 2 divisors, whose sum is σ = 1001020001172. Its totient is φ = 1001020001170.

The previous prime is 1001020001141. The next prime is 1001020001209. The reversal of 1001020001171 is 1711000201001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1001020001171 - 2³⁴ = 983840131987 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001020001141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500510000585 + 500510000586.

It is an arithmetic number, because the mean of its divisors is an integer number (500510000586).

Almost surely, 2^{1001020001171} is an apocalyptic number.

1001020001171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001020001171 is an equidigital number, since it uses as much as digits as its factorization.

1001020001171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14, while the sum is 14.

Adding to 1001020001171 its reverse (1711000201001), we get a palindrome (2712020202172).

The spelling of 1001020001171 in words is "one trillion, one billion, twenty million, one thousand, one hundred seventy-one".