1711111117 has 2 divisors, whose sum is σ = 1711111118. Its totient is φ = 1711111116.

The previous prime is 1711111111. The next prime is 1711111121. The reversal of 1711111117 is 7111111171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1705607401 + 5503716 = 41299^2 + 2346^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1711111117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1711111111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 855555558 + 855555559.

It is an arithmetic number, because the mean of its divisors is an integer number (855555559).

Almost surely, 2^1711111117 is an apocalyptic number.

It is an amenable number.

1711111117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1711111117 is an equidigital number, since it uses as much as digits as its factorization.

1711111117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49, while the sum is 22.

The square root of 1711111117 is about 41365.5788911506. The cubic root of 1711111117 is about 1196.0777301431.

Adding to 1711111117 its reverse (7111111171), we get a palindrome (8822222288).

The spelling of 1711111117 in words is "one billion, seven hundred eleven million, one hundred eleven thousand, one hundred seventeen".