243042999999 has 8 divisors (see below), whose sum is σ = 325318257840. Its totient is φ = 161398204416.

The previous prime is 243042999977. The next prime is 243043000001. The reversal of 243042999999 is 999999240342.

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

It is not a de Polignac number, because 243042999999 - 2¹⁵ = 243042967231 is a prime.

243042999999 is a modest number, since divided by 999999 gives 243042 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243042995999) 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, 157614664 + ... + 157616205.

It is an arithmetic number, because the mean of its divisors is an integer number (40664782230).

Almost surely, 2^243042999999 is an apocalyptic number.

243042999999 is a deficient number, since it is larger than the sum of its proper divisors (82275257841).

243042999999 is a wasteful number, since it uses less digits than its factorization.

243042999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315231129.

The product of its (nonzero) digits is 102036672, while the sum is 69.

The spelling of 243042999999 in words is "two hundred forty-three billion, forty-two million, nine hundred ninety-nine thousand, nine hundred ninety-nine".