23102543 has 2 divisors, whose sum is σ = 23102544. Its totient is φ = 23102542.

The previous prime is 23102539. The next prime is 23102549. The reversal of 23102543 is 34520132.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23102543 - 2² = 23102539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23102549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11551271 + 11551272.

It is an arithmetic number, because the mean of its divisors is an integer number (11551272).

Almost surely, 2^23102543 is an apocalyptic number.

23102543 is a deficient number, since it is larger than the sum of its proper divisors (1).

23102543 is an equidigital number, since it uses as much as digits as its factorization.

23102543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 23102543 is about 4806.5104805878. The cubic root of 23102543 is about 284.8087071716.

Adding to 23102543 its reverse (34520132), we get a palindrome (57622675).

The spelling of 23102543 in words is "twenty-three million, one hundred two thousand, five hundred forty-three".