30121210003312 has 20 divisors (see below), whose sum is σ = 58360053244320. Its totient is φ = 15060551101568.

The previous prime is 30121210003271. The next prime is 30121210003327. The reversal of 30121210003312 is 21330001212103.

It is a self number, because there is not a number n which added to its sum of digits gives 30121210003312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1450548 + ... + 7895980.

It is an arithmetic number, because the mean of its divisors is an integer number (2918002662216).

Almost surely, 2^{30121210003312} is an apocalyptic number.

It is an amenable number.

30121210003312 is a deficient number, since it is larger than the sum of its proper divisors (28238843241008).

30121210003312 is a wasteful number, since it uses less digits than its factorization.

30121210003312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6737520 (or 6737514 counting only the distinct ones).

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

Adding to 30121210003312 its reverse (21330001212103), we get a palindrome (51451211215415).

The spelling of 30121210003312 in words is "thirty trillion, one hundred twenty-one billion, two hundred ten million, three thousand, three hundred twelve".