30443400312 has 32 divisors (see below), whose sum is σ = 81963001680. Its totient is φ = 9367200000.

The previous prime is 30443400307. The next prime is 30443400329. The reversal of 30443400312 is 21300434403.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48787189 + ... + 48787812.

Almost surely, 2^30443400312 is an apocalyptic number.

It is an amenable number.

30443400312 is an abundant number, since it is smaller than the sum of its proper divisors (51519601368).

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

30443400312 is a wasteful number, since it uses less digits than its factorization.

30443400312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97575023 (or 97575019 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 30443400312 its reverse (21300434403), we get a palindrome (51743834715).

The spelling of 30443400312 in words is "thirty billion, four hundred forty-three million, four hundred thousand, three hundred twelve".