30212320312 has 16 divisors (see below), whose sum is σ = 59111061840. Its totient is φ = 14449370496.

The previous prime is 30212320291. The next prime is 30212320331. The reversal of 30212320312 is 21302321203.

It is a self number, because there is not a number n which added to its sum of digits gives 30212320312.

It is a congruent number.

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, 82098513 + ... + 82098880.

It is an arithmetic number, because the mean of its divisors is an integer number (3694441365).

Almost surely, 2^30212320312 is an apocalyptic number.

It is an amenable number.

30212320312 is a deficient number, since it is larger than the sum of its proper divisors (28898741528).

30212320312 is a wasteful number, since it uses less digits than its factorization.

30212320312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164197422 (or 164197418 counting only the distinct ones).

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

Adding to 30212320312 its reverse (21302321203), we get a palindrome (51514641515).

The spelling of 30212320312 in words is "thirty billion, two hundred twelve million, three hundred twenty thousand, three hundred twelve".