2128118234 has 24 divisors (see below), whose sum is σ = 3515988000. Its totient is φ = 965333160.

The previous prime is 2128118231. The next prime is 2128118261. The reversal of 2128118234 is 4328118212.

It is a self number, because there is not a number n which added to its sum of digits gives 2128118234.

It is not an unprimeable number, because it can be changed into a prime (2128118231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111947 + ... + 129569.

It is an arithmetic number, because the mean of its divisors is an integer number (146499500).

Almost surely, 2^2128118234 is an apocalyptic number.

2128118234 is a deficient number, since it is larger than the sum of its proper divisors (1387869766).

2128118234 is a wasteful number, since it uses less digits than its factorization.

2128118234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18146 (or 18135 counting only the distinct ones).

The product of its digits is 6144, while the sum is 32.

The square root of 2128118234 is about 46131.5318843847. The cubic root of 2128118234 is about 1286.2693395692.

The spelling of 2128118234 in words is "two billion, one hundred twenty-eight million, one hundred eighteen thousand, two hundred thirty-four".