30313232231212 has 48 divisors (see below), whose sum is σ = 60778673625600. Its totient is φ = 12958807554432.

The previous prime is 30313232231167. The next prime is 30313232231281. The reversal of 30313232231212 is 21213223231303.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18083673 + ... + 19688719.

It is an arithmetic number, because the mean of its divisors is an integer number (1266222367200).

Almost surely, 2^{30313232231212} is an apocalyptic number.

It is an amenable number.

30313232231212 is an abundant number, since it is smaller than the sum of its proper divisors (30465441394388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30313232231212 is a wasteful number, since it uses less digits than its factorization.

30313232231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606750 (or 1606748 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 30313232231212 its reverse (21213223231303), we get a palindrome (51526455462515).

The spelling of 30313232231212 in words is "thirty trillion, three hundred thirteen billion, two hundred thirty-two million, two hundred thirty-one thousand, two hundred twelve".