30051021200 has 120 divisors (see below), whose sum is σ = 73980086400. Its totient is φ = 11726241280.

The previous prime is 30051021173. The next prime is 30051021229. The reversal of 30051021200 is 212015003.

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 23 ways as a sum of consecutive naturals, for example, 3790841 + ... + 3798759.

It is an arithmetic number, because the mean of its divisors is an integer number (616500720).

Almost surely, 2^30051021200 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 30051021200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36990043200).

30051021200 is an abundant number, since it is smaller than the sum of its proper divisors (43929065200).

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

30051021200 is a wasteful number, since it uses less digits than its factorization.

30051021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8169 (or 8158 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

Adding to 30051021200 its reverse (212015003), we get a palindrome (30263036203).

The spelling of 30051021200 in words is "thirty billion, fifty-one million, twenty-one thousand, two hundred".