30312230212 has 12 divisors (see below), whose sum is σ = 57868803216. Its totient is φ = 13778286440.

The previous prime is 30312230189. The next prime is 30312230237. The reversal of 30312230212 is 21203221303.

It is a self number, because there is not a number n which added to its sum of digits gives 30312230212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344457118 + ... + 344457205.

It is an arithmetic number, because the mean of its divisors is an integer number (4822400268).

Almost surely, 2^30312230212 is an apocalyptic number.

It is an amenable number.

30312230212 is a deficient number, since it is larger than the sum of its proper divisors (27556573004).

30312230212 is a wasteful number, since it uses less digits than its factorization.

30312230212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688914338 (or 688914336 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30312230212 its reverse (21203221303), we get a palindrome (51515451515).

The spelling of 30312230212 in words is "thirty billion, three hundred twelve million, two hundred thirty thousand, two hundred twelve".