243311551343 has 8 divisors (see below), whose sum is σ = 279019392288. Its totient is φ = 207840972384.

The previous prime is 243311551339. The next prime is 243311551363. The reversal of 243311551343 is 343155113342.

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

It is a cyclic number.

It is not a de Polignac number, because 243311551343 - 2² = 243311551339 is a prime.

It is a super-2 number, since 2×243311551343² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243311551363) 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, 59313296 + ... + 59317397.

It is an arithmetic number, because the mean of its divisors is an integer number (34877424036).

Almost surely, 2^243311551343 is an apocalyptic number.

243311551343 is a deficient number, since it is larger than the sum of its proper divisors (35707840945).

243311551343 is a wasteful number, since it uses less digits than its factorization.

243311551343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118630993.

The product of its digits is 64800, while the sum is 35.

Adding to 243311551343 its reverse (343155113342), we get a palindrome (586466664685).

The spelling of 243311551343 in words is "two hundred forty-three billion, three hundred eleven million, five hundred fifty-one thousand, three hundred forty-three".