243312211330 has 32 divisors (see below), whose sum is σ = 442559789424. Its totient is φ = 96305965056.

The previous prime is 243312211271. The next prime is 243312211349. The reversal of 243312211330 is 33112213342.

It can be written as a sum of positive squares in 8 ways, for example, as 14387282809 + 228924928521 = 119947^2 + 478461^2 .

It is a junction number, because it is equal to n+sod(n) for n = 243312211295 and 243312211304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517062 + ... + 868318.

Almost surely, 2^243312211330 is an apocalyptic number.

243312211330 is a deficient number, since it is larger than the sum of its proper divisors (199247578094).

243312211330 is a wasteful number, since it uses less digits than its factorization.

243312211330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351990.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 243312211330 its reverse (33112213342), we get a palindrome (276424424672).

The spelling of 243312211330 in words is "two hundred forty-three billion, three hundred twelve million, two hundred eleven thousand, three hundred thirty".