243321323213312 has 40 divisors (see below), whose sum is σ = 486358140757500. Its totient is φ = 121612932173824.

The previous prime is 243321323213303. The next prime is 243321323213347. The reversal of 243321323213312 is 213312323123342.

It can be written as a sum of positive squares in 2 ways, for example, as 243270651402496 + 50671810816 = 15597136^2 + 225104^2 .

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, 91915187 + ... + 94525362.

Almost surely, 2^{243321323213312} is an apocalyptic number.

It is an amenable number.

243321323213312 is a deficient number, since it is larger than the sum of its proper divisors (243036817544188).

243321323213312 is an equidigital number, since it uses as much as digits as its factorization.

243321323213312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186443116 (or 186443100 counting only the distinct ones).

The product of its digits is 93312, while the sum is 35.

Adding to 243321323213312 its reverse (213312323123342), we get a palindrome (456633646336654).

The spelling of 243321323213312 in words is "two hundred forty-three trillion, three hundred twenty-one billion, three hundred twenty-three million, two hundred thirteen thousand, three hundred twelve".