1118023 has 2 divisors, whose sum is σ = 1118024. Its totient is φ = 1118022.

The previous prime is 1118021. The next prime is 1118027. The reversal of 1118023 is 3208111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1118023 - 2¹ = 1118021 is a prime.

Together with 1118021, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1117988 and 1118006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1118021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559011 + 559012.

It is an arithmetic number, because the mean of its divisors is an integer number (559012).

2^1118023 is an apocalyptic number.

1118023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118023 is an equidigital number, since it uses as much as digits as its factorization.

1118023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1118023 is about 1057.3660671688. The cubic root of 1118023 is about 103.7887415194.

The spelling of 1118023 in words is "one million, one hundred eighteen thousand, twenty-three".