30203031212 has 6 divisors (see below), whose sum is σ = 52855304628. Its totient is φ = 15101515604.

The previous prime is 30203031203. The next prime is 30203031223. The reversal of 30203031212 is 21213030203.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3775378898 + ... + 3775378905.

It is an arithmetic number, because the mean of its divisors is an integer number (8809217438).

Almost surely, 2^30203031212 is an apocalyptic number.

It is an amenable number.

30203031212 is a deficient number, since it is larger than the sum of its proper divisors (22652273416).

30203031212 is a wasteful number, since it uses less digits than its factorization.

30203031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7550757807 (or 7550757805 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30203031212 its reverse (21213030203), we get a palindrome (51416061415).

The spelling of 30203031212 in words is "thirty billion, two hundred three million, thirty-one thousand, two hundred twelve".