243143213304 has 32 divisors (see below), whose sum is σ = 607912992720. Its totient is φ = 81040409856.

The previous prime is 243143213281. The next prime is 243143213321. The reversal of 243143213304 is 403312341342.

It is a happy number.

It is a congruent number.

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, 183669 + ... + 721124.

Almost surely, 2^243143213304 is an apocalyptic number.

243143213304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

243143213304 is an abundant number, since it is smaller than the sum of its proper divisors (364769779416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243143213304 is a wasteful number, since it uses less digits than its factorization.

243143213304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915999 (or 915995 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 243143213304 its reverse (403312341342), we get a palindrome (646455554646).

The spelling of 243143213304 in words is "two hundred forty-three billion, one hundred forty-three million, two hundred thirteen thousand, three hundred four".