1118003 has 2 divisors, whose sum is σ = 1118004. Its totient is φ = 1118002.

The previous prime is 1117993. The next prime is 1118009. The reversal of 1118003 is 3008111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1118003 - 2⁶ = 1117939 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1118009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559001 + 559002.

It is an arithmetic number, because the mean of its divisors is an integer number (559002).

2^1118003 is an apocalyptic number.

1118003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118003 is an equidigital number, since it uses as much as digits as its factorization.

1118003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1118003 is about 1057.3566096639. The cubic root of 1118003 is about 103.7881226332.

The spelling of 1118003 in words is "one million, one hundred eighteen thousand, three".