243102023 has 4 divisors (see below), whose sum is σ = 257402160. Its totient is φ = 228801888.

The previous prime is 243101977. The next prime is 243102029. The reversal of 243102023 is 320201342.

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 243102023 - 2⁸ = 243101767 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 14300119 = 243102023 / (2 + 4 + 3 + 1 + 0 + 2 + 0 + 2 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243101992 and 243102010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243102029) 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 3 ways as a sum of consecutive naturals, for example, 7150043 + ... + 7150076.

It is an arithmetic number, because the mean of its divisors is an integer number (64350540).

Almost surely, 2^243102023 is an apocalyptic number.

243102023 is a deficient number, since it is larger than the sum of its proper divisors (14300137).

243102023 is a wasteful number, since it uses less digits than its factorization.

243102023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14300136.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 243102023 is about 15591.7293139664. The cubic root of 243102023 is about 624.1124665449.

Adding to 243102023 its reverse (320201342), we get a palindrome (563303365).

The spelling of 243102023 in words is "two hundred forty-three million, one hundred two thousand, twenty-three".