12312230233 has 2 divisors, whose sum is σ = 12312230234. Its totient is φ = 12312230232.

The previous prime is 12312230207. The next prime is 12312230251. The reversal of 12312230233 is 33203221321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7749633024 + 4562597209 = 88032^2 + 67547^2 .

It is a cyclic number.

It is not a de Polignac number, because 12312230233 - 2²¹ = 12310133081 is a prime.

It is not a weakly prime, because it can be changed into another prime (12312230933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156115116 + 6156115117.

It is an arithmetic number, because the mean of its divisors is an integer number (6156115117).

Almost surely, 2^12312230233 is an apocalyptic number.

It is an amenable number.

12312230233 is a deficient number, since it is larger than the sum of its proper divisors (1).

12312230233 is an equidigital number, since it uses as much as digits as its factorization.

12312230233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 12312230233 its reverse (33203221321), we get a palindrome (45515451554).

The spelling of 12312230233 in words is "twelve billion, three hundred twelve million, two hundred thirty thousand, two hundred thirty-three".