30320231212 has 24 divisors (see below), whose sum is σ = 53319555072. Its totient is φ = 15086206800.

The previous prime is 30320231111. The next prime is 30320231213. The reversal of 30320231212 is 21213202303.

It is a self number, because there is not a number n which added to its sum of digits gives 30320231212.

It is not an unprimeable number, because it can be changed into a prime (30320231213) 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, 919287 + ... + 951697.

It is an arithmetic number, because the mean of its divisors is an integer number (2221648128).

Almost surely, 2^30320231212 is an apocalyptic number.

It is an amenable number.

30320231212 is a deficient number, since it is larger than the sum of its proper divisors (22999323860).

30320231212 is a wasteful number, since it uses less digits than its factorization.

30320231212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33549 (or 33547 counting only the distinct ones).

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

Adding to 30320231212 its reverse (21213202303), we get a palindrome (51533433515).

The spelling of 30320231212 in words is "thirty billion, three hundred twenty million, two hundred thirty-one thousand, two hundred twelve".