312230230121 has 2 divisors, whose sum is σ = 312230230122. Its totient is φ = 312230230120.

The previous prime is 312230230099. The next prime is 312230230237. The reversal of 312230230121 is 121032032213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 312189270121 + 40960000 = 558739^2 + 6400^2 .

It is a cyclic number.

It is not a de Polignac number, because 312230230121 - 2¹⁰ = 312230229097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312230230093 and 312230230102.

It is not a weakly prime, because it can be changed into another prime (312230280121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156115115060 + 156115115061.

It is an arithmetic number, because the mean of its divisors is an integer number (156115115061).

Almost surely, 2^312230230121 is an apocalyptic number.

It is an amenable number.

312230230121 is a deficient number, since it is larger than the sum of its proper divisors (1).

312230230121 is an equidigital number, since it uses as much as digits as its factorization.

312230230121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 312230230121 its reverse (121032032213), we get a palindrome (433262262334).

The spelling of 312230230121 in words is "three hundred twelve billion, two hundred thirty million, two hundred thirty thousand, one hundred twenty-one".