123003243 has 12 divisors (see below), whose sum is σ = 193823448. Its totient is φ = 74547360.

The previous prime is 123003227. The next prime is 123003253. The reversal of 123003243 is 342300321.

It is not a de Polignac number, because 123003243 - 2⁴ = 123003227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123003253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 621130 + ... + 621327.

It is an arithmetic number, because the mean of its divisors is an integer number (16151954).

Almost surely, 2^123003243 is an apocalyptic number.

123003243 is a deficient number, since it is larger than the sum of its proper divisors (70820205).

123003243 is a wasteful number, since it uses less digits than its factorization.

123003243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242474 (or 1242471 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 123003243 is about 11090.6827111770. The cubic root of 123003243 is about 497.3233540350.

Adding to 123003243 its reverse (342300321), we get a palindrome (465303564).

The spelling of 123003243 in words is "one hundred twenty-three million, three thousand, two hundred forty-three".