1001111001047 has 2 divisors, whose sum is σ = 1001111001048. Its totient is φ = 1001111001046.

The previous prime is 1001111001001. The next prime is 1001111001067. The reversal of 1001111001047 is 7401001111001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1001111001047 - 2³² = 996816033751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001111001067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500555500523 + 500555500524.

It is an arithmetic number, because the mean of its divisors is an integer number (500555500524).

Almost surely, 2^{1001111001047} is an apocalyptic number.

1001111001047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001111001047 is an equidigital number, since it uses as much as digits as its factorization.

1001111001047 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 17.

Adding to 1001111001047 its reverse (7401001111001), we get a palindrome (8402112112048).

The spelling of 1001111001047 in words is "one trillion, one billion, one hundred eleven million, one thousand, forty-seven".