243213534003312 has 120 divisors (see below), whose sum is σ = 687606929210448. Its totient is φ = 80244248832000.

The previous prime is 243213534003229. The next prime is 243213534003313. The reversal of 243213534003312 is 213300435312342.

243213534003312 is a `hidden beast` number, since 2 + 4 + 3 + 213 + 5 + 3 + 400 + 3 + 31 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243213534003313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45660487 + ... + 50708057.

Almost surely, 2^{243213534003312} 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 243213534003312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343803464605224).

243213534003312 is an abundant number, since it is smaller than the sum of its proper divisors (444393395207136).

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

243213534003312 is a wasteful number, since it uses less digits than its factorization.

243213534003312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050999 (or 5050990 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 36.

Adding to 243213534003312 its reverse (213300435312342), we get a palindrome (456513969315654).

The spelling of 243213534003312 in words is "two hundred forty-three trillion, two hundred thirteen billion, five hundred thirty-four million, three thousand, three hundred twelve".