30311010331212 has 48 divisors (see below), whose sum is σ = 76286835790592. Its totient is φ = 9311684235840.

The previous prime is 30311010331181. The next prime is 30311010331417. The reversal of 30311010331212 is 21213301011303.

It is a happy number.

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, 153864598 + ... + 154061469.

Almost surely, 2^{30311010331212} is an apocalyptic number.

It is an amenable number.

30311010331212 is an abundant number, since it is smaller than the sum of its proper divisors (45975825459380).

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

30311010331212 is a wasteful number, since it uses less digits than its factorization.

30311010331212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307926718 (or 307926716 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 30311010331212 its reverse (21213301011303), we get a palindrome (51524311342515).

The spelling of 30311010331212 in words is "thirty trillion, three hundred eleven billion, ten million, three hundred thirty-one thousand, two hundred twelve".