1118713291 has 2 divisors, whose sum is σ = 1118713292. Its totient is φ = 1118713290.

The previous prime is 1118713289. The next prime is 1118713301. The reversal of 1118713291 is 1923178111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1118713291 - 2¹ = 1118713289 is a prime.

Together with 1118713289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1118719291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559356645 + 559356646.

It is an arithmetic number, because the mean of its divisors is an integer number (559356646).

Almost surely, 2^1118713291 is an apocalyptic number.

1118713291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118713291 is an equidigital number, since it uses as much as digits as its factorization.

1118713291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 34.

The square root of 1118713291 is about 33447.1716442512. The cubic root of 1118713291 is about 1038.1009757810.

The spelling of 1118713291 in words is "one billion, one hundred eighteen million, seven hundred thirteen thousand, two hundred ninety-one".