2123130534 has 16 divisors (see below), whose sum is σ = 4852869888. Its totient is φ = 606608712.

The previous prime is 2123130533. The next prime is 2123130587. The reversal of 2123130534 is 4350313212.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123130533) 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 7 ways as a sum of consecutive naturals, for example, 25275322 + ... + 25275405.

It is an arithmetic number, because the mean of its divisors is an integer number (303304368).

Almost surely, 2^2123130534 is an apocalyptic number.

2123130534 is an abundant number, since it is smaller than the sum of its proper divisors (2729739354).

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

2123130534 is a wasteful number, since it uses less digits than its factorization.

2123130534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50550739.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 2123130534 is about 46077.4406190274. The cubic root of 2123130534 is about 1285.2636711073.

Adding to 2123130534 its reverse (4350313212), we get a palindrome (6473443746).

The spelling of 2123130534 in words is "two billion, one hundred twenty-three million, one hundred thirty thousand, five hundred thirty-four".