243240501343 has 8 divisors (see below), whose sum is σ = 278051189888. Its totient is φ = 208445324184.

The previous prime is 243240501289. The next prime is 243240501359. The reversal of 243240501343 is 343105042342.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243240501343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243240501143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3844221 + ... + 3906982.

It is an arithmetic number, because the mean of its divisors is an integer number (34756398736).

Almost surely, 2^243240501343 is an apocalyptic number.

243240501343 is a deficient number, since it is larger than the sum of its proper divisors (34810688545).

243240501343 is an equidigital number, since it uses as much as digits as its factorization.

243240501343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7755693.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 243240501343 its reverse (343105042342), we get a palindrome (586345543685).

The spelling of 243240501343 in words is "two hundred forty-three billion, two hundred forty million, five hundred one thousand, three hundred forty-three".