243203400232 has 64 divisors (see below), whose sum is σ = 498875569920. Its totient is φ = 110469858048.

The previous prime is 243203400203. The next prime is 243203400241. The reversal of 243203400232 is 232004302342.

It is a junction number, because it is equal to n+sod(n) for n = 243203400197 and 243203400206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7767633 + ... + 7798879.

It is an arithmetic number, because the mean of its divisors is an integer number (7794930780).

Almost surely, 2^243203400232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243203400232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249437784960).

243203400232 is an abundant number, since it is smaller than the sum of its proper divisors (255672169688).

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

243203400232 is a wasteful number, since it uses less digits than its factorization.

243203400232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32450 (or 32446 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 25.

Adding to 243203400232 its reverse (232004302342), we get a palindrome (475207702574).

The spelling of 243203400232 in words is "two hundred forty-three billion, two hundred three million, four hundred thousand, two hundred thirty-two".