5102171111 has 2 divisors, whose sum is σ = 5102171112. Its totient is φ = 5102171110.

The previous prime is 5102171083. The next prime is 5102171117. The reversal of 5102171111 is 1111712015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5102171111 - 2⁶ = 5102171047 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5102171117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2551085555 + 2551085556.

It is an arithmetic number, because the mean of its divisors is an integer number (2551085556).

Almost surely, 2^5102171111 is an apocalyptic number.

5102171111 is a deficient number, since it is larger than the sum of its proper divisors (1).

5102171111 is an equidigital number, since it uses as much as digits as its factorization.

5102171111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70, while the sum is 20.

The square root of 5102171111 is about 71429.4834854628. The cubic root of 5102171111 is about 1721.5448432445.

Adding to 5102171111 its reverse (1111712015), we get a palindrome (6213883126).

The spelling of 5102171111 in words is "five billion, one hundred two million, one hundred seventy-one thousand, one hundred eleven".