243251401343 has 2 divisors, whose sum is σ = 243251401344. Its totient is φ = 243251401342.

The previous prime is 243251401333. The next prime is 243251401387. The reversal of 243251401343 is 343104152342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243251401343 - 2¹⁸ = 243251139199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243251401333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121625700671 + 121625700672.

It is an arithmetic number, because the mean of its divisors is an integer number (121625700672).

Almost surely, 2^243251401343 is an apocalyptic number.

243251401343 is a deficient number, since it is larger than the sum of its proper divisors (1).

243251401343 is an equidigital number, since it uses as much as digits as its factorization.

243251401343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 243251401343 its reverse (343104152342), we get a palindrome (586355553685).

The spelling of 243251401343 in words is "two hundred forty-three billion, two hundred fifty-one million, four hundred one thousand, three hundred forty-three".