12302345123 has 2 divisors, whose sum is σ = 12302345124. Its totient is φ = 12302345122.

The previous prime is 12302345117. The next prime is 12302345147. The reversal of 12302345123 is 32154320321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12302345123 - 2¹⁰ = 12302344099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12302345092 and 12302345101.

It is not a weakly prime, because it can be changed into another prime (12302345723) 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, 6151172561 + 6151172562.

It is an arithmetic number, because the mean of its divisors is an integer number (6151172562).

Almost surely, 2^12302345123 is an apocalyptic number.

12302345123 is a deficient number, since it is larger than the sum of its proper divisors (1).

12302345123 is an equidigital number, since it uses as much as digits as its factorization.

12302345123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 12302345123 its reverse (32154320321), we get a palindrome (44456665444).

The spelling of 12302345123 in words is "twelve billion, three hundred two million, three hundred forty-five thousand, one hundred twenty-three".