123343239 has 4 divisors (see below), whose sum is σ = 164457656. Its totient is φ = 82228824.

The previous prime is 123343183. The next prime is 123343247. The reversal of 123343239 is 932343321.

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

It is not a de Polignac number, because 123343239 - 2⁹ = 123342727 is a prime.

It is a super-2 number, since 2×123343239² = 30427109214022242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123343639) 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 in 3 ways as a sum of consecutive naturals, for example, 20557204 + ... + 20557209.

It is an arithmetic number, because the mean of its divisors is an integer number (41114414).

Almost surely, 2^123343239 is an apocalyptic number.

123343239 is a deficient number, since it is larger than the sum of its proper divisors (41114417).

123343239 is an equidigital number, since it uses as much as digits as its factorization.

123343239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41114416.

The product of its digits is 11664, while the sum is 30.

The square root of 123343239 is about 11106.0001350621. Note that the first 3 decimals coincide. The cubic root of 123343239 is about 497.7811533377.

The spelling of 123343239 in words is "one hundred twenty-three million, three hundred forty-three thousand, two hundred thirty-nine".