2123344140 has 24 divisors (see below), whose sum is σ = 5945363760. Its totient is φ = 566225088.

The previous prime is 2123344117. The next prime is 2123344159. The reversal of 2123344140 is 414433212.

It is a self number, because there is not a number n which added to its sum of digits gives 2123344140.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17694475 + ... + 17694594.

It is an arithmetic number, because the mean of its divisors is an integer number (247723490).

Almost surely, 2^2123344140 is an apocalyptic number.

2123344140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2123344140 is an abundant number, since it is smaller than the sum of its proper divisors (3822019620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123344140 is a wasteful number, since it uses less digits than its factorization.

2123344140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35389081 (or 35389079 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2123344140 is about 46079.7584629086. The cubic root of 2123344140 is about 1285.3067726847.

Adding to 2123344140 its reverse (414433212), we get a palindrome (2537777352).

The spelling of 2123344140 in words is "two billion, one hundred twenty-three million, three hundred forty-four thousand, one hundred forty".