30000021321320 has 32 divisors (see below), whose sum is σ = 67678148397600. Its totient is φ = 11968346230848.

The previous prime is 30000021321293. The next prime is 30000021321371. The reversal of 30000021321320 is 2312312000003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 989431454 + ... + 989461773.

It is an arithmetic number, because the mean of its divisors is an integer number (2114942137425).

Almost surely, 2^{30000021321320} is an apocalyptic number.

It is an amenable number.

30000021321320 is an abundant number, since it is smaller than the sum of its proper divisors (37678127076280).

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

30000021321320 is a wasteful number, since it uses less digits than its factorization.

30000021321320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978893617 (or 1978893613 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 30000021321320 its reverse (2312312000003), we get a palindrome (32312333321323).

The spelling of 30000021321320 in words is "thirty trillion, twenty-one million, three hundred twenty-one thousand, three hundred twenty".