2118331005 has 24 divisors (see below), whose sum is σ = 3942690912. Its totient is φ = 968379552.

The previous prime is 2118331001. The next prime is 2118331049. The reversal of 2118331005 is 5001338112.

It is not a de Polignac number, because 2118331005 - 2² = 2118331001 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118331001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1440307 + ... + 1441776.

It is an arithmetic number, because the mean of its divisors is an integer number (164278788).

Almost surely, 2^2118331005 is an apocalyptic number.

It is an amenable number.

2118331005 is a deficient number, since it is larger than the sum of its proper divisors (1824359907).

2118331005 is a wasteful number, since it uses less digits than its factorization.

2118331005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882105 (or 2882098 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 2118331005 is about 46025.3300368395. The cubic root of 2118331005 is about 1284.2944554010.

Adding to 2118331005 its reverse (5001338112), we get a palindrome (7119669117).

The spelling of 2118331005 in words is "two billion, one hundred eighteen million, three hundred thirty-one thousand, five".