243203240430 has 48 divisors (see below), whose sum is σ = 632406578544. Its totient is φ = 64846181760.

The previous prime is 243203240429. The next prime is 243203240477. The reversal of 243203240430 is 34042302342.

243203240430 is a `hidden beast` number, since 2 + 4 + 3 + 203 + 24 + 0 + 430 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 243203240394 and 243203240403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 583885 + ... + 909575.

It is an arithmetic number, because the mean of its divisors is an integer number (13175137053).

Almost surely, 2^243203240430 is an apocalyptic number.

243203240430 is an abundant number, since it is smaller than the sum of its proper divisors (389203338114).

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

243203240430 is a wasteful number, since it uses less digits than its factorization.

243203240430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334001 (or 333998 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 243203240430 its reverse (34042302342), we get a palindrome (277245542772).

The spelling of 243203240430 in words is "two hundred forty-three billion, two hundred three million, two hundred forty thousand, four hundred thirty".