2081188123 has 24 divisors (see below), whose sum is σ = 2573741520. Its totient is φ = 1673179200.

The previous prime is 2081188079. The next prime is 2081188129. The reversal of 2081188123 is 3218811802.

It is not a de Polignac number, because 2081188123 - 2²⁵ = 2047633691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2081188129) 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, 82965 + ... + 105097.

It is an arithmetic number, because the mean of its divisors is an integer number (107239230).

Almost surely, 2^2081188123 is an apocalyptic number.

2081188123 is a deficient number, since it is larger than the sum of its proper divisors (492553397).

2081188123 is a wasteful number, since it uses less digits than its factorization.

2081188123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22267 (or 22260 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 34.

The square root of 2081188123 is about 45620.0408044535. The cubic root of 2081188123 is about 1276.7438647957.

Adding to 2081188123 its reverse (3218811802), we get a palindrome (5299999925).

The spelling of 2081188123 in words is "two billion, eighty-one million, one hundred eighty-eight thousand, one hundred twenty-three".