2118303 has 12 divisors (see below), whose sum is σ = 3338088. Its totient is φ = 1283760.

The previous prime is 2118301. The next prime is 2118313. The reversal of 2118303 is 3038112.

It is not a de Polignac number, because 2118303 - 2¹ = 2118301 is a prime.

2118303 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10600 + ... + 10797.

It is an arithmetic number, because the mean of its divisors is an integer number (278174).

2^2118303 is an apocalyptic number.

2118303 is a deficient number, since it is larger than the sum of its proper divisors (1219785).

2118303 is a wasteful number, since it uses less digits than its factorization.

2118303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21414 (or 21411 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2118303 is about 1455.4391089977. The cubic root of 2118303 is about 128.4288795784.

The spelling of 2118303 in words is "two million, one hundred eighteen thousand, three hundred three".