11111101101047 has 2 divisors, whose sum is σ = 11111101101048. Its totient is φ = 11111101101046.

The previous prime is 11111101100971. The next prime is 11111101101167. The reversal of 11111101101047 is 74010110111111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11111101101047 - 2¹⁴ = 11111101084663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111101101547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555550550523 + 5555550550524.

It is an arithmetic number, because the mean of its divisors is an integer number (5555550550524).

Almost surely, 2^{11111101101047} is an apocalyptic number.

11111101101047 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111101101047 is an equidigital number, since it uses as much as digits as its factorization.

11111101101047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 20.

Adding to 11111101101047 its reverse (74010110111111), we get a palindrome (85121211212158).

The spelling of 11111101101047 in words is "eleven trillion, one hundred eleven billion, one hundred one million, one hundred one thousand, forty-seven".