2118388503 has 48 divisors (see below), whose sum is σ = 3662747648. Its totient is φ = 1064923200.

The previous prime is 2118388501. The next prime is 2118388543. The reversal of 2118388503 is 3058838112.

It is not a de Polignac number, because 2118388503 - 2¹ = 2118388501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118388501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65325 + ... + 92217.

Almost surely, 2^2118388503 is an apocalyptic number.

2118388503 is a deficient number, since it is larger than the sum of its proper divisors (1544359145).

2118388503 is a wasteful number, since it uses less digits than its factorization.

2118388503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26956 (or 26945 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 2118388503 is about 46025.9546669051. The cubic root of 2118388503 is about 1284.3060751926.

The spelling of 2118388503 in words is "two billion, one hundred eighteen million, three hundred eighty-eight thousand, five hundred three".