30203103131212 has 18 divisors (see below), whose sum is σ = 58097291354564. Its totient is φ = 13728683241240.

The previous prime is 30203103131203. The next prime is 30203103131263. The reversal of 30203103131212 is 21213130130203.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31201552338 + ... + 31201553305.

Almost surely, 2^{30203103131212} is an apocalyptic number.

It is an amenable number.

30203103131212 is a deficient number, since it is larger than the sum of its proper divisors (27894188223352).

30203103131212 is a wasteful number, since it uses less digits than its factorization.

30203103131212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62403105669 (or 62403105656 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 30203103131212 its reverse (21213130130203), we get a palindrome (51416233261415).

The spelling of 30203103131212 in words is "thirty trillion, two hundred three billion, one hundred three million, one hundred thirty-one thousand, two hundred twelve".