243300142443 has 16 divisors (see below), whose sum is σ = 327659794560. Its totient is φ = 160576905984.

The previous prime is 243300142439. The next prime is 243300142469. The reversal of 243300142443 is 344241003342.

It is a happy number.

It is not a de Polignac number, because 243300142443 - 2² = 243300142439 is a prime.

It is a super-3 number, since 3×243300142443³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243300142443.

It is not an unprimeable number, because it can be changed into a prime (243300142243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679221 + ... + 973622.

It is an arithmetic number, because the mean of its divisors is an integer number (20478737160).

Almost surely, 2^243300142443 is an apocalyptic number.

243300142443 is a deficient number, since it is larger than the sum of its proper divisors (84359652117).

243300142443 is a wasteful number, since it uses less digits than its factorization.

243300142443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653338.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 243300142443 its reverse (344241003342), we get a palindrome (587541145785).

The spelling of 243300142443 in words is "two hundred forty-three billion, three hundred million, one hundred forty-two thousand, four hundred forty-three".