243213222312342 has 24 divisors (see below), whose sum is σ = 541204197399216. Its totient is φ = 78879963992976.

The previous prime is 243213222312299. The next prime is 243213222312407.

243213222312342 is a `hidden beast` number, since 2 + 4 + 321 + 322 + 2 + 3 + 1 + 2 + 3 + 4 + 2 = 666.

243213222312342 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 243213222312297 and 243213222312306.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 182592508578 + ... + 182592509909.

It is an arithmetic number, because the mean of its divisors is an integer number (22550174891634).

Almost surely, 2^{243213222312342} is an apocalyptic number.

243213222312342 is an abundant number, since it is smaller than the sum of its proper divisors (297990975086874).

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

243213222312342 is a wasteful number, since it uses less digits than its factorization.

243213222312342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365185018532 (or 365185018529 counting only the distinct ones).

The product of its digits is 165888, while the sum is 36.

The spelling of 243213222312342 in words is "two hundred forty-three trillion, two hundred thirteen billion, two hundred twenty-two million, three hundred twelve thousand, three hundred forty-two".