123044243 has 6 divisors (see below), whose sum is σ = 143133156. Its totient is φ = 105466452.

The previous prime is 123044183. The next prime is 123044279. The reversal of 123044243 is 342440321.

It is not a de Polignac number, because 123044243 - 2⁶ = 123044179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123044293) 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 5 ways as a sum of consecutive naturals, for example, 1255505 + ... + 1255602.

It is an arithmetic number, because the mean of its divisors is an integer number (23855526).

Almost surely, 2^123044243 is an apocalyptic number.

123044243 is a deficient number, since it is larger than the sum of its proper divisors (20088913).

123044243 is an equidigital number, since it uses as much as digits as its factorization.

123044243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511121 (or 2511114 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 123044243 is about 11092.5309555574. The cubic root of 123044243 is about 497.3786045902.

Adding to 123044243 its reverse (342440321), we get a palindrome (465484564).

The spelling of 123044243 in words is "one hundred twenty-three million, forty-four thousand, two hundred forty-three".