1111842047 has 2 divisors, whose sum is σ = 1111842048. Its totient is φ = 1111842046.

The previous prime is 1111842031. The next prime is 1111842073. The reversal of 1111842047 is 7402481111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111842047 - 2⁴ = 1111842031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111842077) 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, 555921023 + 555921024.

It is an arithmetic number, because the mean of its divisors is an integer number (555921024).

Almost surely, 2^1111842047 is an apocalyptic number.

1111842047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111842047 is an equidigital number, since it uses as much as digits as its factorization.

1111842047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 1111842047 is about 33344.2955691075. The cubic root of 1111842047 is about 1035.9712376421.

The spelling of 1111842047 in words is "one billion, one hundred eleven million, eight hundred forty-two thousand, forty-seven".