30304312120 has 64 divisors (see below), whose sum is σ = 70905715200. Its totient is φ = 11642373120.

The previous prime is 30304312117. The next prime is 30304312127. The reversal of 30304312120 is 2121340303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30304312127) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 153172 + ... + 289948.

It is an arithmetic number, because the mean of its divisors is an integer number (1107901800).

Almost surely, 2^30304312120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30304312120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35452857600).

30304312120 is an abundant number, since it is smaller than the sum of its proper divisors (40601403080).

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

30304312120 is a wasteful number, since it uses less digits than its factorization.

30304312120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137008 (or 137004 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30304312120 its reverse (2121340303), we get a palindrome (32425652423).

The spelling of 30304312120 in words is "thirty billion, three hundred four million, three hundred twelve thousand, one hundred twenty".