1118123 has 2 divisors, whose sum is σ = 1118124. Its totient is φ = 1118122.

The previous prime is 1118113. The next prime is 1118137. The reversal of 1118123 is 3218111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1118123 - 2⁸ = 1117867 is a prime.

It is a plaindrome in base 7.

It is not a weakly prime, because it can be changed into another prime (1118113) 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, 559061 + 559062.

It is an arithmetic number, because the mean of its divisors is an integer number (559062).

2^1118123 is an apocalyptic number.

1118123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118123 is an equidigital number, since it uses as much as digits as its factorization.

1118123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48, while the sum is 17.

The square root of 1118123 is about 1057.4133534243. The cubic root of 1118123 is about 103.7918358400.

The spelling of 1118123 in words is "one million, one hundred eighteen thousand, one hundred twenty-three".