123041243 has 8 divisors (see below), whose sum is σ = 136087728. Its totient is φ = 110506464.

The previous prime is 123041227. The next prime is 123041273. The reversal of 123041243 is 342140321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123041243 - 2⁴ = 123041227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123041203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127421 + ... + 128382.

It is an arithmetic number, because the mean of its divisors is an integer number (17010966).

Almost surely, 2^123041243 is an apocalyptic number.

123041243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123041243 is a deficient number, since it is larger than the sum of its proper divisors (13046485).

123041243 is a wasteful number, since it uses less digits than its factorization.

123041243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255853.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 123041243 is about 11092.3957286062. The cubic root of 123041243 is about 497.3745622828.

Adding to 123041243 its reverse (342140321), we get a palindrome (465181564).

The spelling of 123041243 in words is "one hundred twenty-three million, forty-one thousand, two hundred forty-three".