2118162003 has 16 divisors (see below), whose sum is σ = 2843630496. Its totient is φ = 1402419200.

The previous prime is 2118161993. The next prime is 2118162031. The reversal of 2118162003 is 3002618112.

It is a cyclic number.

It is not a de Polignac number, because 2118162003 - 2⁹ = 2118161491 is a prime.

It is a super-2 number, since 2×2118162003² = 8973220541905944018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2118162043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 673651 + ... + 676787.

It is an arithmetic number, because the mean of its divisors is an integer number (177726906).

Almost surely, 2^2118162003 is an apocalyptic number.

2118162003 is a deficient number, since it is larger than the sum of its proper divisors (725468493).

2118162003 is a wasteful number, since it uses less digits than its factorization.

2118162003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4614.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 2118162003 is about 46023.4940329393. The cubic root of 2118162003 is about 1284.2603005084.

The spelling of 2118162003 in words is "two billion, one hundred eighteen million, one hundred sixty-two thousand, three".