12312003322273 has 2 divisors, whose sum is σ = 12312003322274. Its totient is φ = 12312003322272.

The previous prime is 12312003322259. The next prime is 12312003322349. The reversal of 12312003322273 is 37222330021321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11768549803024 + 543453519249 = 3430532^2 + 737193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12312003322273 is a prime.

It is a super-2 number, since 2×12312003322273² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12312003322243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156001661136 + 6156001661137.

It is an arithmetic number, because the mean of its divisors is an integer number (6156001661137).

Almost surely, 2^{12312003322273} is an apocalyptic number.

It is an amenable number.

12312003322273 is a deficient number, since it is larger than the sum of its proper divisors (1).

12312003322273 is an equidigital number, since it uses as much as digits as its factorization.

12312003322273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 31.

Adding to 12312003322273 its reverse (37222330021321), we get a palindrome (49534333343594).

The spelling of 12312003322273 in words is "twelve trillion, three hundred twelve billion, three million, three hundred twenty-two thousand, two hundred seventy-three".