23380543 has 2 divisors, whose sum is σ = 23380544. Its totient is φ = 23380542.

The previous prime is 23380531. The next prime is 23380549. The reversal of 23380543 is 34508332.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23380543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23380549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11690271 + 11690272.

It is an arithmetic number, because the mean of its divisors is an integer number (11690272).

Almost surely, 2^23380543 is an apocalyptic number.

23380543 is a deficient number, since it is larger than the sum of its proper divisors (1).

23380543 is an equidigital number, since it uses as much as digits as its factorization.

23380543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 23380543 is about 4835.3431108868. The cubic root of 23380543 is about 285.9465521914.

Adding to 23380543 its reverse (34508332), we get a palindrome (57888875).

The spelling of 23380543 in words is "twenty-three million, three hundred eighty thousand, five hundred forty-three".