243234432319 has 2 divisors, whose sum is σ = 243234432320. Its totient is φ = 243234432318.

The previous prime is 243234432317. The next prime is 243234432347. The reversal of 243234432319 is 913234432342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243234432319 - 2¹ = 243234432317 is a prime.

It is a super-2 number, since 2×243234432319² (a number of 24 digits) contains 22 as substring.

Together with 243234432317, 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 (243234432317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121617216159 + 121617216160.

It is an arithmetic number, because the mean of its divisors is an integer number (121617216160).

Almost surely, 2^243234432319 is an apocalyptic number.

243234432319 is a deficient number, since it is larger than the sum of its proper divisors (1).

243234432319 is an equidigital number, since it uses as much as digits as its factorization.

243234432319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 40.

The spelling of 243234432319 in words is "two hundred forty-three billion, two hundred thirty-four million, four hundred thirty-two thousand, three hundred nineteen".