102671111 has 2 divisors, whose sum is σ = 102671112. Its totient is φ = 102671110.

The previous prime is 102671089. The next prime is 102671131. The reversal of 102671111 is 111176201.

It is a happy number.

It is an a-pointer prime, because the next prime (102671131) can be obtained adding 102671111 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102671111 - 2⁶ = 102671047 is a prime.

It is a super-4 number, since 4×102671111⁴ (a number of 33 digits) contains 4444 as substring.

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 (102671131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51335555 + 51335556.

It is an arithmetic number, because the mean of its divisors is an integer number (51335556).

Almost surely, 2^102671111 is an apocalyptic number.

102671111 is a deficient number, since it is larger than the sum of its proper divisors (1).

102671111 is an equidigital number, since it uses as much as digits as its factorization.

102671111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 20.

The square root of 102671111 is about 10132.6754117558. The cubic root of 102671111 is about 468.2553562364.

The spelling of 102671111 in words is "one hundred two million, six hundred seventy-one thousand, one hundred eleven".