4423231543 has 2 divisors, whose sum is σ = 4423231544. Its totient is φ = 4423231542.

The previous prime is 4423231541. The next prime is 4423231619. The reversal of 4423231543 is 3451323244.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4423231543 - 2¹ = 4423231541 is a prime.

Together with 4423231541, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4423231541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2211615771 + 2211615772.

It is an arithmetic number, because the mean of its divisors is an integer number (2211615772).

Almost surely, 2^4423231543 is an apocalyptic number.

4423231543 is a deficient number, since it is larger than the sum of its proper divisors (1).

4423231543 is an equidigital number, since it uses as much as digits as its factorization.

4423231543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 31.

The square root of 4423231543 is about 66507.3796130926. The cubic root of 4423231543 is about 1641.5214345187.

Adding to 4423231543 its reverse (3451323244), we get a palindrome (7874554787).

The spelling of 4423231543 in words is "four billion, four hundred twenty-three million, two hundred thirty-one thousand, five hundred forty-three".