11111120047 has 2 divisors, whose sum is σ = 11111120048. Its totient is φ = 11111120046.

The previous prime is 11111120011. The next prime is 11111120081. The reversal of 11111120047 is 74002111111.

It is a strong prime.

It is an emirp because it is prime and its reverse (74002111111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11111120047 - 2⁷ = 11111119919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111120747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555560023 + 5555560024.

It is an arithmetic number, because the mean of its divisors is an integer number (5555560024).

Almost surely, 2^11111120047 is an apocalyptic number.

11111120047 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111120047 is an equidigital number, since it uses as much as digits as its factorization.

11111120047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 19.

Adding to 11111120047 its reverse (74002111111), we get a palindrome (85113231158).

The spelling of 11111120047 in words is "eleven billion, one hundred eleven million, one hundred twenty thousand, forty-seven".