111000009999947 has 2 divisors, whose sum is σ = 111000009999948. Its totient is φ = 111000009999946.

The previous prime is 111000009999913. The next prime is 111000010000007. The reversal of 111000009999947 is 749999900000111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111000009999947 is a prime.

It is not a weakly prime, because it can be changed into another prime (111000009999547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55500004999973 + 55500004999974.

It is an arithmetic number, because the mean of its divisors is an integer number (55500004999974).

Almost surely, 2^{111000009999947} is an apocalyptic number.

111000009999947 is a deficient number, since it is larger than the sum of its proper divisors (1).

111000009999947 is an equidigital number, since it uses as much as digits as its factorization.

111000009999947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1653372, while the sum is 59.

The spelling of 111000009999947 in words is "one hundred eleven trillion, nine million, nine hundred ninety-nine thousand, nine hundred forty-seven".