1111056047 has 2 divisors, whose sum is σ = 1111056048. Its totient is φ = 1111056046.

The previous prime is 1111056041. The next prime is 1111056061. The reversal of 1111056047 is 7406501111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111056047 - 2²⁰ = 1110007471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111056041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555528023 + 555528024.

It is an arithmetic number, because the mean of its divisors is an integer number (555528024).

Almost surely, 2^1111056047 is an apocalyptic number.

1111056047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111056047 is an equidigital number, since it uses as much as digits as its factorization.

1111056047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 1111056047 is about 33332.5073614332. The cubic root of 1111056047 is about 1035.7270586690.

Adding to 1111056047 its reverse (7406501111), we get a palindrome (8517557158).

The spelling of 1111056047 in words is "one billion, one hundred eleven million, fifty-six thousand, forty-seven".