2123081130 has 32 divisors (see below), whose sum is σ = 5123559168. Its totient is φ = 563025600.

The previous prime is 2123081101. The next prime is 2123081137. The reversal of 2123081130 is 311803212.

It is a junction number, because it is equal to n+sod(n) for n = 2123081097 and 2123081106.

It is not an unprimeable number, because it can be changed into a prime (2123081137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190066 + ... + 200925.

It is an arithmetic number, because the mean of its divisors is an integer number (160111224).

Almost surely, 2^2123081130 is an apocalyptic number.

2123081130 is an abundant number, since it is smaller than the sum of its proper divisors (3000478038).

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

2123081130 is a wasteful number, since it uses less digits than its factorization.

2123081130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391182.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 2123081130 is about 46076.9045184244. The cubic root of 2123081130 is about 1285.2537019199.

Adding to 2123081130 its reverse (311803212), we get a palindrome (2434884342).

The spelling of 2123081130 in words is "two billion, one hundred twenty-three million, eighty-one thousand, one hundred thirty".