123810343 has 2 divisors, whose sum is σ = 123810344. Its totient is φ = 123810342.

The previous prime is 123810307. The next prime is 123810433. The reversal of 123810343 is 343018321.

Together with next prime (123810433) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123810343 - 2⁹ = 123809831 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123810443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61905171 + 61905172.

It is an arithmetic number, because the mean of its divisors is an integer number (61905172).

Almost surely, 2^123810343 is an apocalyptic number.

123810343 is a deficient number, since it is larger than the sum of its proper divisors (1).

123810343 is an equidigital number, since it uses as much as digits as its factorization.

123810343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 123810343 is about 11127.0096162446. The cubic root of 123810343 is about 498.4087317699.

Adding to 123810343 its reverse (343018321), we get a palindrome (466828664).

The spelling of 123810343 in words is "one hundred twenty-three million, eight hundred ten thousand, three hundred forty-three".