243341431133 has 2 divisors, whose sum is σ = 243341431134. Its totient is φ = 243341431132.

The previous prime is 243341431103. The next prime is 243341431141. The reversal of 243341431133 is 331134143342.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214811856484 + 28529574649 = 463478^2 + 168907^2 .

It is a cyclic number.

It is not a de Polignac number, because 243341431133 - 2⁸ = 243341430877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243341431133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243341431103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121670715566 + 121670715567.

It is an arithmetic number, because the mean of its divisors is an integer number (121670715567).

Almost surely, 2^243341431133 is an apocalyptic number.

It is an amenable number.

243341431133 is a deficient number, since it is larger than the sum of its proper divisors (1).

243341431133 is an equidigital number, since it uses as much as digits as its factorization.

243341431133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 32.

Adding to 243341431133 its reverse (331134143342), we get a palindrome (574475574475).

The spelling of 243341431133 in words is "two hundred forty-three billion, three hundred forty-one million, four hundred thirty-one thousand, one hundred thirty-three".