2130112321 has 8 divisors (see below), whose sum is σ = 2225385000. Its totient is φ = 2036294400.

The previous prime is 2130112289. The next prime is 2130112339. The reversal of 2130112321 is 1232110312.

It can be written as a sum of positive squares in 4 ways, for example, as 535228225 + 1594884096 = 23135^2 + 39936^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2130112321 - 2⁵ = 2130112289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2130112295 and 2130112304.

It is not an unprimeable number, because it can be changed into a prime (2130112381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360696 + ... + 366553.

It is an arithmetic number, because the mean of its divisors is an integer number (278173125).

Almost surely, 2^2130112321 is an apocalyptic number.

It is an amenable number.

2130112321 is a deficient number, since it is larger than the sum of its proper divisors (95272679).

2130112321 is a wasteful number, since it uses less digits than its factorization.

2130112321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727379.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2130112321 is about 46153.1398823525. The cubic root of 2130112321 is about 1286.6709670437.

Adding to 2130112321 its reverse (1232110312), we get a palindrome (3362222633).

The spelling of 2130112321 in words is "two billion, one hundred thirty million, one hundred twelve thousand, three hundred twenty-one".