243535144423 has 2 divisors, whose sum is σ = 243535144424. Its totient is φ = 243535144422.

The previous prime is 243535144417. The next prime is 243535144499. The reversal of 243535144423 is 324441535342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243535144423 - 2³³ = 234945209831 is a prime.

It is a super-3 number, since 3×243535144423³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243535142423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121767572211 + 121767572212.

It is an arithmetic number, because the mean of its divisors is an integer number (121767572212).

Almost surely, 2^243535144423 is an apocalyptic number.

243535144423 is a deficient number, since it is larger than the sum of its proper divisors (1).

243535144423 is an equidigital number, since it uses as much as digits as its factorization.

243535144423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 691200, while the sum is 40.

Adding to 243535144423 its reverse (324441535342), we get a palindrome (567976679765).

The spelling of 243535144423 in words is "two hundred forty-three billion, five hundred thirty-five million, one hundred forty-four thousand, four hundred twenty-three".