111111240043 has 2 divisors, whose sum is σ = 111111240044. Its totient is φ = 111111240042.

The previous prime is 111111240041. The next prime is 111111240067. The reversal of 111111240043 is 340042111111.

It is a weak prime.

It is an emirp because it is prime and its reverse (340042111111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111111240043 - 2¹ = 111111240041 is a prime.

Together with 111111240041, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 111111240043.

It is not a weakly prime, because it can be changed into another prime (111111240041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555620021 + 55555620022.

It is an arithmetic number, because the mean of its divisors is an integer number (55555620022).

Almost surely, 2^111111240043 is an apocalyptic number.

111111240043 is a deficient number, since it is larger than the sum of its proper divisors (1).

111111240043 is an equidigital number, since it uses as much as digits as its factorization.

111111240043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 111111240043 its reverse (340042111111), we get a palindrome (451153351154).

The spelling of 111111240043 in words is "one hundred eleven billion, one hundred eleven million, two hundred forty thousand, forty-three".