305342020644212 has 24 divisors (see below), whose sum is σ = 565629565116000. Its totient is φ = 143978434752096.

The previous prime is 305342020644211. The next prime is 305342020644229. The reversal of 305342020644212 is 212446020243503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305342020644211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30607655462 + ... + 30607665437.

It is an arithmetic number, because the mean of its divisors is an integer number (23567898546500).

Almost surely, 2^{305342020644212} is an apocalyptic number.

It is an amenable number.

305342020644212 is a deficient number, since it is larger than the sum of its proper divisors (260287544471788).

305342020644212 is a wasteful number, since it uses less digits than its factorization.

305342020644212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61215320975 (or 61215320973 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 38.

Adding to 305342020644212 its reverse (212446020243503), we get a palindrome (517788040887715).

The spelling of 305342020644212 in words is "three hundred five trillion, three hundred forty-two billion, twenty million, six hundred forty-four thousand, two hundred twelve".