305205452112 has 80 divisors (see below), whose sum is σ = 905394193920. Its totient is φ = 87618787200.

The previous prime is 305205452021. The next prime is 305205452129. The reversal of 305205452112 is 211254502503.

It is a self number, because there is not a number n which added to its sum of digits gives 305205452112.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15201564 + ... + 15221627.

It is an arithmetic number, because the mean of its divisors is an integer number (11317427424).

Almost surely, 2^305205452112 is an apocalyptic number.

It is an amenable number.

305205452112 is an abundant number, since it is smaller than the sum of its proper divisors (600188741808).

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

305205452112 is a wasteful number, since it uses less digits than its factorization.

305205452112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30423232 (or 30423226 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 305205452112 its reverse (211254502503), we get a palindrome (516459954615).

The spelling of 305205452112 in words is "three hundred five billion, two hundred five million, four hundred fifty-two thousand, one hundred twelve".