243013423 has 8 divisors (see below), whose sum is σ = 257054688. Its totient is φ = 229261824.

The previous prime is 243013399. The next prime is 243013451. The reversal of 243013423 is 324310342.

It is a happy number.

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 243013423 - 2¹⁷ = 242882351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243013394 and 243013403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243013523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70690 + ... + 74047.

It is an arithmetic number, because the mean of its divisors is an integer number (32131836).

Almost surely, 2^243013423 is an apocalyptic number.

243013423 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

243013423 is a deficient number, since it is larger than the sum of its proper divisors (14041265).

243013423 is a wasteful number, since it uses less digits than its factorization.

243013423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144833.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 243013423 is about 15588.8878051001. The cubic root of 243013423 is about 624.0366368131.

Adding to 243013423 its reverse (324310342), we get a palindrome (567323765).

The spelling of 243013423 in words is "two hundred forty-three million, thirteen thousand, four hundred twenty-three".