243133344343 has 2 divisors, whose sum is σ = 243133344344. Its totient is φ = 243133344342.

The previous prime is 243133344299. The next prime is 243133344451. The reversal of 243133344343 is 343443331342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243133344343 - 2¹³ = 243133336151 is a prime.

It is a super-2 number, since 2×243133344343² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243133344043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121566672171 + 121566672172.

It is an arithmetic number, because the mean of its divisors is an integer number (121566672172).

Almost surely, 2^243133344343 is an apocalyptic number.

243133344343 is a deficient number, since it is larger than the sum of its proper divisors (1).

243133344343 is an equidigital number, since it uses as much as digits as its factorization.

243133344343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 37.

Adding to 243133344343 its reverse (343443331342), we get a palindrome (586576675685).

The spelling of 243133344343 in words is "two hundred forty-three billion, one hundred thirty-three million, three hundred forty-four thousand, three hundred forty-three".