123512343 has 4 divisors (see below), whose sum is σ = 164683128. Its totient is φ = 82341560.

The previous prime is 123512321. The next prime is 123512351. The reversal of 123512343 is 343215321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123512343 - 2⁹ = 123511831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123512303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20585388 + ... + 20585393.

It is an arithmetic number, because the mean of its divisors is an integer number (41170782).

Almost surely, 2^123512343 is an apocalyptic number.

123512343 is a deficient number, since it is larger than the sum of its proper divisors (41170785).

123512343 is an equidigital number, since it uses as much as digits as its factorization.

123512343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41170784.

The product of its digits is 2160, while the sum is 24.

The square root of 123512343 is about 11113.6107093959. The cubic root of 123512343 is about 498.0085360063.

Adding to 123512343 its reverse (343215321), we get a palindrome (466727664).

The spelling of 123512343 in words is "one hundred twenty-three million, five hundred twelve thousand, three hundred forty-three".