123347243 has 4 divisors (see below), whose sum is σ = 123380640. Its totient is φ = 123313848.

The previous prime is 123347239. The next prime is 123347267. The reversal of 123347243 is 342743321.

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 123347243 - 2² = 123347239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123347293) 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, 10355 + ... + 18812.

It is an arithmetic number, because the mean of its divisors is an integer number (30845160).

Almost surely, 2^123347243 is an apocalyptic number.

123347243 is a deficient number, since it is larger than the sum of its proper divisors (33397).

123347243 is an equidigital number, since it uses as much as digits as its factorization.

123347243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33396.

The product of its digits is 12096, while the sum is 29.

The square root of 123347243 is about 11106.1803965180. The cubic root of 123347243 is about 497.7865396460.

The spelling of 123347243 in words is "one hundred twenty-three million, three hundred forty-seven thousand, two hundred forty-three".