111110047 has 2 divisors, whose sum is σ = 111110048. Its totient is φ = 111110046.

The previous prime is 111110029. The next prime is 111110057. The reversal of 111110047 is 740011111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111110047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111110047.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111110057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555023 + 55555024.

It is an arithmetic number, because the mean of its divisors is an integer number (55555024).

Almost surely, 2^111110047 is an apocalyptic number.

111110047 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110047 is an equidigital number, since it uses as much as digits as its factorization.

111110047 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 16.

The square root of 111110047 is about 10540.8750585518. The cubic root of 111110047 is about 480.7483220504.

Adding to 111110047 its reverse (740011111), we get a palindrome (851121158).

The spelling of 111110047 in words is "one hundred eleven million, one hundred ten thousand, forty-seven".