243043982315 has 8 divisors (see below), whose sum is σ = 291685723920. Its totient is φ = 194413222432.

The previous prime is 243043982281. The next prime is 243043982359. The reversal of 243043982315 is 513289340342.

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 243043982315 - 2²⁰ = 243042933739 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2696660 + ... + 2785329.

It is an arithmetic number, because the mean of its divisors is an integer number (36460715490).

Almost surely, 2^243043982315 is an apocalyptic number.

243043982315 is a deficient number, since it is larger than the sum of its proper divisors (48641741605).

243043982315 is an equidigital number, since it uses as much as digits as its factorization.

243043982315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5490861.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 243043982315 in words is "two hundred forty-three billion, forty-three million, nine hundred eighty-two thousand, three hundred fifteen".