30231311212 has 12 divisors (see below), whose sum is σ = 52987333896. Its totient is φ = 15092072960.

The previous prime is 30231311171. The next prime is 30231311273. The reversal of 30231311212 is 21211313203.

It is a self number, because there is not a number n which added to its sum of digits gives 30231311212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5892778 + ... + 5897905.

It is an arithmetic number, because the mean of its divisors is an integer number (4415611158).

Almost surely, 2^30231311212 is an apocalyptic number.

It is an amenable number.

30231311212 is a deficient number, since it is larger than the sum of its proper divisors (22756022684).

30231311212 is a wasteful number, since it uses less digits than its factorization.

30231311212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11791328 (or 11791326 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30231311212 its reverse (21211313203), we get a palindrome (51442624415).

The spelling of 30231311212 in words is "thirty billion, two hundred thirty-one million, three hundred eleven thousand, two hundred twelve".