123203343 has 4 divisors (see below), whose sum is σ = 164271128. Its totient is φ = 82135560.

The previous prime is 123203329. The next prime is 123203351. The reversal of 123203343 is 343302321.

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

It is not a de Polignac number, because 123203343 - 2⁶ = 123203279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123203363) 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 in 3 ways as a sum of consecutive naturals, for example, 20533888 + ... + 20533893.

It is an arithmetic number, because the mean of its divisors is an integer number (41067782).

Almost surely, 2^123203343 is an apocalyptic number.

123203343 is a deficient number, since it is larger than the sum of its proper divisors (41067785).

123203343 is an equidigital number, since it uses as much as digits as its factorization.

123203343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41067784.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 123203343 is about 11099.7001310846. The cubic root of 123203343 is about 497.5928875490.

Adding to 123203343 its reverse (343302321), we get a palindrome (466505664).

The spelling of 123203343 in words is "one hundred twenty-three million, two hundred three thousand, three hundred forty-three".