111223543043 has 2 divisors, whose sum is σ = 111223543044. Its totient is φ = 111223543042.

The previous prime is 111223542973. The next prime is 111223543073. The reversal of 111223543043 is 340345322111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111223543043 - 2¹⁶ = 111223477507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111223542997 and 111223543015.

It is not a weakly prime, because it can be changed into another prime (111223543073) 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, 55611771521 + 55611771522.

It is an arithmetic number, because the mean of its divisors is an integer number (55611771522).

Almost surely, 2^111223543043 is an apocalyptic number.

111223543043 is a deficient number, since it is larger than the sum of its proper divisors (1).

111223543043 is an equidigital number, since it uses as much as digits as its factorization.

111223543043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 111223543043 its reverse (340345322111), we get a palindrome (451568865154).

The spelling of 111223543043 in words is "one hundred eleven billion, two hundred twenty-three million, five hundred forty-three thousand, forty-three".