243114100321 has 2 divisors, whose sum is σ = 243114100322. Its totient is φ = 243114100320.

The previous prime is 243114100253. The next prime is 243114100391. The reversal of 243114100321 is 123001411342.

243114100321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237573382225 + 5540718096 = 487415^2 + 74436^2 .

It is a cyclic number.

It is not a de Polignac number, because 243114100321 - 2¹⁷ = 243113969249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243114100292 and 243114100301.

It is not a weakly prime, because it can be changed into another prime (243114100391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121557050160 + 121557050161.

It is an arithmetic number, because the mean of its divisors is an integer number (121557050161).

Almost surely, 2^243114100321 is an apocalyptic number.

It is an amenable number.

243114100321 is a deficient number, since it is larger than the sum of its proper divisors (1).

243114100321 is an equidigital number, since it uses as much as digits as its factorization.

243114100321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 243114100321 its reverse (123001411342), we get a palindrome (366115511663).

The spelling of 243114100321 in words is "two hundred forty-three billion, one hundred fourteen million, one hundred thousand, three hundred twenty-one".