243021020302312 has 32 divisors (see below), whose sum is σ = 520765374355200. Its totient is φ = 104150656816704.

The previous prime is 243021020302289. The next prime is 243021020302367. The reversal of 243021020302312 is 213203020120342.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20312512 + ... + 29977327.

It is an arithmetic number, because the mean of its divisors is an integer number (16273917948600).

Almost surely, 2^{243021020302312} is an apocalyptic number.

It is an amenable number.

243021020302312 is an abundant number, since it is smaller than the sum of its proper divisors (277744354052888).

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

243021020302312 is a wasteful number, since it uses less digits than its factorization.

243021020302312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50376145 (or 50376141 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 243021020302312 its reverse (213203020120342), we get a palindrome (456224040422654).

The spelling of 243021020302312 in words is "two hundred forty-three trillion, twenty-one billion, twenty million, three hundred two thousand, three hundred twelve".