12120103321 has 2 divisors, whose sum is σ = 12120103322. Its totient is φ = 12120103320.

The previous prime is 12120103279. The next prime is 12120103337. The reversal of 12120103321 is 12330102121.

It is an a-pointer prime, because the next prime (12120103337) can be obtained adding 12120103321 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6678975625 + 5441127696 = 81725^2 + 73764^2 .

It is an emirp because it is prime and its reverse (12330102121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12120103321 - 2⁹ = 12120102809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12120103295 and 12120103304.

It is not a weakly prime, because it can be changed into another prime (12120103361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060051660 + 6060051661.

It is an arithmetic number, because the mean of its divisors is an integer number (6060051661).

Almost surely, 2^12120103321 is an apocalyptic number.

It is an amenable number.

12120103321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120103321 is an equidigital number, since it uses as much as digits as its factorization.

12120103321 is an evil number, because the sum of its binary digits is even.

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

Adding to 12120103321 its reverse (12330102121), we get a palindrome (24450205442).

The spelling of 12120103321 in words is "twelve billion, one hundred twenty million, one hundred three thousand, three hundred twenty-one".