12130000321 has 2 divisors, whose sum is σ = 12130000322. Its totient is φ = 12130000320.

The previous prime is 12130000319. The next prime is 12130000381. The reversal of 12130000321 is 12300003121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10829316096 + 1300684225 = 104064^2 + 36065^2 .

It is a cyclic number.

It is not a de Polignac number, because 12130000321 - 2¹ = 12130000319 is a prime.

Together with 12130000319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12130000381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6065000160 + 6065000161.

It is an arithmetic number, because the mean of its divisors is an integer number (6065000161).

Almost surely, 2^12130000321 is an apocalyptic number.

It is an amenable number.

12130000321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12130000321 is an equidigital number, since it uses as much as digits as its factorization.

12130000321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 12130000321 its reverse (12300003121), we get a palindrome (24430003442).

The spelling of 12130000321 in words is "twelve billion, one hundred thirty million, three hundred twenty-one", and thus it is an aban number.