123312430343 has 2 divisors, whose sum is σ = 123312430344. Its totient is φ = 123312430342.

The previous prime is 123312430321. The next prime is 123312430349. The reversal of 123312430343 is 343034213321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123312430343 - 2¹² = 123312426247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123312430349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61656215171 + 61656215172.

It is an arithmetic number, because the mean of its divisors is an integer number (61656215172).

Almost surely, 2^123312430343 is an apocalyptic number.

123312430343 is a deficient number, since it is larger than the sum of its proper divisors (1).

123312430343 is an equidigital number, since it uses as much as digits as its factorization.

123312430343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 123312430343 its reverse (343034213321), we get a palindrome (466346643664).

The spelling of 123312430343 in words is "one hundred twenty-three billion, three hundred twelve million, four hundred thirty thousand, three hundred forty-three".