23145044543 has 2 divisors, whose sum is σ = 23145044544. Its totient is φ = 23145044542.

The previous prime is 23145044497. The next prime is 23145044551. The reversal of 23145044543 is 34544054132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23145044543 - 2⁸ = 23145044287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23145044443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11572522271 + 11572522272.

It is an arithmetic number, because the mean of its divisors is an integer number (11572522272).

Almost surely, 2^23145044543 is an apocalyptic number.

23145044543 is a deficient number, since it is larger than the sum of its proper divisors (1).

23145044543 is an equidigital number, since it uses as much as digits as its factorization.

23145044543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 23145044543 its reverse (34544054132), we get a palindrome (57689098675).

The spelling of 23145044543 in words is "twenty-three billion, one hundred forty-five million, forty-four thousand, five hundred forty-three".