1110991907 has 2 divisors, whose sum is σ = 1110991908. Its totient is φ = 1110991906.

The previous prime is 1110991853. The next prime is 1110991909. The reversal of 1110991907 is 7091990111.

It is a strong prime.

It is an emirp because it is prime and its reverse (7091990111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1110991907 - 2¹⁰ = 1110990883 is a prime.

Together with 1110991909, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1110991909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555495953 + 555495954.

It is an arithmetic number, because the mean of its divisors is an integer number (555495954).

Almost surely, 2^1110991907 is an apocalyptic number.

1110991907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110991907 is an equidigital number, since it uses as much as digits as its factorization.

1110991907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103, while the sum is 38.

The square root of 1110991907 is about 33331.5452237066. The cubic root of 1110991907 is about 1035.7071278377.

The spelling of 1110991907 in words is "one billion, one hundred ten million, nine hundred ninety-one thousand, nine hundred seven".