23318143 has 2 divisors, whose sum is σ = 23318144. Its totient is φ = 23318142.

The previous prime is 23318129. The next prime is 23318147. The reversal of 23318143 is 34181332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23318143 - 2¹⁷ = 23187071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23318147) 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 as a sum of consecutive naturals, namely, 11659071 + 11659072.

It is an arithmetic number, because the mean of its divisors is an integer number (11659072).

Almost surely, 2^23318143 is an apocalyptic number.

23318143 is a deficient number, since it is larger than the sum of its proper divisors (1).

23318143 is an equidigital number, since it uses as much as digits as its factorization.

23318143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 23318143 is about 4828.8863105275. The cubic root of 23318143 is about 285.6919393118.

Adding to 23318143 its reverse (34181332), we get a palindrome (57499475).

The spelling of 23318143 in words is "twenty-three million, three hundred eighteen thousand, one hundred forty-three".