11111110101043 has 2 divisors, whose sum is σ = 11111110101044. Its totient is φ = 11111110101042.

The previous prime is 11111110100939. The next prime is 11111110101071. The reversal of 11111110101043 is 34010101111111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11111110101043 - 2²⁹ = 11110573230131 is a prime.

It is not a weakly prime, because it can be changed into another prime (11111110101073) 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, 5555555050521 + 5555555050522.

It is an arithmetic number, because the mean of its divisors is an integer number (5555555050522).

Almost surely, 2^{11111110101043} is an apocalyptic number.

11111110101043 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111110101043 is an equidigital number, since it uses as much as digits as its factorization.

11111110101043 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 11111110101043 its reverse (34010101111111), we get a palindrome (45121211212154).

The spelling of 11111110101043 in words is "eleven trillion, one hundred eleven billion, one hundred ten million, one hundred one thousand, forty-three".