30312011212 has 48 divisors (see below), whose sum is σ = 60953518080. Its totient is φ = 12920455872.

The previous prime is 30312011179. The next prime is 30312011267. The reversal of 30312011212 is 21211021303.

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 15 ways as a sum of consecutive naturals, for example, 3993573 + ... + 4001155.

It is an arithmetic number, because the mean of its divisors is an integer number (1269864960).

Almost surely, 2^30312011212 is an apocalyptic number.

It is an amenable number.

30312011212 is an abundant number, since it is smaller than the sum of its proper divisors (30641506868).

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

30312011212 is a wasteful number, since it uses less digits than its factorization.

30312011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8350 (or 8348 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30312011212 its reverse (21211021303), we get a palindrome (51523032515).

The spelling of 30312011212 in words is "thirty billion, three hundred twelve million, eleven thousand, two hundred twelve".