23135443 has 2 divisors, whose sum is σ = 23135444. Its totient is φ = 23135442.

The previous prime is 23135389. The next prime is 23135449. The reversal of 23135443 is 34453132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23135443 - 2⁹ = 23134931 is a prime.

It is not a weakly prime, because it can be changed into another prime (23135449) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11567721 + 11567722.

It is an arithmetic number, because the mean of its divisors is an integer number (11567722).

Almost surely, 2^23135443 is an apocalyptic number.

23135443 is a deficient number, since it is larger than the sum of its proper divisors (1).

23135443 is an equidigital number, since it uses as much as digits as its factorization.

23135443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 25.

The square root of 23135443 is about 4809.9317042968. The cubic root of 23135443 is about 284.9438403759.

Adding to 23135443 its reverse (34453132), we get a palindrome (57588575).

The spelling of 23135443 in words is "twenty-three million, one hundred thirty-five thousand, four hundred forty-three".