111102143 has 2 divisors, whose sum is σ = 111102144. Its totient is φ = 111102142.

The previous prime is 111102127. The next prime is 111102163. The reversal of 111102143 is 341201111.

It is a weak prime.

It is an emirp because it is prime and its reverse (341201111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111102143 - 2⁴ = 111102127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111102163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55551071 + 55551072.

It is an arithmetic number, because the mean of its divisors is an integer number (55551072).

Almost surely, 2^111102143 is an apocalyptic number.

111102143 is a deficient number, since it is larger than the sum of its proper divisors (1).

111102143 is an equidigital number, since it uses as much as digits as its factorization.

111102143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 111102143 is about 10540.5001304492. The cubic root of 111102143 is about 480.7369221667.

Adding to 111102143 its reverse (341201111), we get a palindrome (452303254).

The spelling of 111102143 in words is "one hundred eleven million, one hundred two thousand, one hundred forty-three".