243203223424 has 32 divisors (see below), whose sum is σ = 553721626800. Its totient is φ = 104229952512.

The previous prime is 243203223379. The next prime is 243203223433. The reversal of 243203223424 is 424322302342.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135715189 + ... + 135716980.

Almost surely, 2^243203223424 is an apocalyptic number.

It is an amenable number.

243203223424 is an abundant number, since it is smaller than the sum of its proper divisors (310518403376).

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

243203223424 is an equidigital number, since it uses as much as digits as its factorization.

243203223424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271432190 (or 271432178 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 243203223424 its reverse (424322302342), we get a palindrome (667525525766).

The spelling of 243203223424 in words is "two hundred forty-three billion, two hundred three million, two hundred twenty-three thousand, four hundred twenty-four".