111011111010043 has 2 divisors, whose sum is σ = 111011111010044. Its totient is φ = 111011111010042.

The previous prime is 111011111009971. The next prime is 111011111010049. The reversal of 111011111010043 is 340010111110111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111011111010043 - 2⁹ = 111011111009531 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111011111009999 and 111011111010026.

It is not a weakly prime, because it can be changed into another prime (111011111010049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505555505021 + 55505555505022.

It is an arithmetic number, because the mean of its divisors is an integer number (55505555505022).

Almost surely, 2^{111011111010043} is an apocalyptic number.

111011111010043 is a deficient number, since it is larger than the sum of its proper divisors (1).

111011111010043 is an equidigital number, since it uses as much as digits as its factorization.

111011111010043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 111011111010043 its reverse (340010111110111), we get a palindrome (451021222120154).

The spelling of 111011111010043 in words is "one hundred eleven trillion, eleven billion, one hundred eleven million, ten thousand, forty-three".