12310121 has 2 divisors, whose sum is σ = 12310122. Its totient is φ = 12310120.

The previous prime is 12310097. The next prime is 12310147. The reversal of 12310121 is 12101321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6574096 + 5736025 = 2564^2 + 2395^2 .

It is a cyclic number.

It is not a de Polignac number, because 12310121 - 2¹⁰ = 12309097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12310021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155060 + 6155061.

It is an arithmetic number, because the mean of its divisors is an integer number (6155061).

Almost surely, 2^12310121 is an apocalyptic number.

It is an amenable number.

12310121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12310121 is an equidigital number, since it uses as much as digits as its factorization.

12310121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 12310121 is about 3508.5782020642. The cubic root of 12310121 is about 230.8983204732.

Adding to 12310121 its reverse (12101321), we get a palindrome (24411442).

The spelling of 12310121 in words is "twelve million, three hundred ten thousand, one hundred twenty-one".