30203321212 has 6 divisors (see below), whose sum is σ = 52855812128. Its totient is φ = 15101660604.

The previous prime is 30203321191. The next prime is 30203321243. The reversal of 30203321212 is 21212330203.

It is a super-2 number, since 2×30203321212² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30203321212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3775415148 + ... + 3775415155.

Almost surely, 2^30203321212 is an apocalyptic number.

It is an amenable number.

30203321212 is a deficient number, since it is larger than the sum of its proper divisors (22652490916).

30203321212 is a wasteful number, since it uses less digits than its factorization.

30203321212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7550830307 (or 7550830305 counting only the distinct ones).

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

Adding to 30203321212 its reverse (21212330203), we get a palindrome (51415651415).

The spelling of 30203321212 in words is "thirty billion, two hundred three million, three hundred twenty-one thousand, two hundred twelve".