12130122321 has 24 divisors (see below), whose sum is σ = 17800945344. Its totient is φ = 7958637600.

The previous prime is 12130122299. The next prime is 12130122359. The reversal of 12130122321 is 12322103121.

12130122321 is a `hidden beast` number, since 1 + 21 + 301 + 22 + 321 = 666.

It is not a de Polignac number, because 12130122321 - 2¹¹ = 12130120273 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12130122294 and 12130122303.

It is not an unprimeable number, because it can be changed into a prime (12130122721) 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, 111850 + ... + 191756.

It is an arithmetic number, because the mean of its divisors is an integer number (741706056).

Almost surely, 2^12130122321 is an apocalyptic number.

It is an amenable number.

12130122321 is a deficient number, since it is larger than the sum of its proper divisors (5670823023).

12130122321 is a wasteful number, since it uses less digits than its factorization.

12130122321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80181 (or 80178 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12130122321 its reverse (12322103121), we get a palindrome (24452225442).

The spelling of 12130122321 in words is "twelve billion, one hundred thirty million, one hundred twenty-two thousand, three hundred twenty-one".