243324321007 has 2 divisors, whose sum is σ = 243324321008. Its totient is φ = 243324321006.

The previous prime is 243324320999. The next prime is 243324321013. The reversal of 243324321007 is 700123423342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243324321007 - 2³ = 243324320999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243324321007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243324321077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121662160503 + 121662160504.

It is an arithmetic number, because the mean of its divisors is an integer number (121662160504).

Almost surely, 2^243324321007 is an apocalyptic number.

243324321007 is a deficient number, since it is larger than the sum of its proper divisors (1).

243324321007 is an equidigital number, since it uses as much as digits as its factorization.

243324321007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 31.

Adding to 243324321007 its reverse (700123423342), we get a palindrome (943447744349).

The spelling of 243324321007 in words is "two hundred forty-three billion, three hundred twenty-four million, three hundred twenty-one thousand, seven".