1000071081127 has 2 divisors, whose sum is σ = 1000071081128. Its totient is φ = 1000071081126.

The previous prime is 1000071081091. The next prime is 1000071081157. The reversal of 1000071081127 is 7211801700001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000071081127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000071081095 and 1000071081104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000071081157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500035540563 + 500035540564.

It is an arithmetic number, because the mean of its divisors is an integer number (500035540564).

Almost surely, 2^{1000071081127} is an apocalyptic number.

1000071081127 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000071081127 is an equidigital number, since it uses as much as digits as its factorization.

1000071081127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 28.

Adding to 1000071081127 its reverse (7211801700001), we get a palindrome (8211872781128).

The spelling of 1000071081127 in words is "one trillion, seventy-one million, eighty-one thousand, one hundred twenty-seven".