30821033900 has 36 divisors (see below), whose sum is σ = 69039122880. Its totient is φ = 11930721600.

The previous prime is 30821033843. The next prime is 30821033963. The reversal of 30821033900 is 933012803.

It is a super-2 number, since 2×30821033900² (a number of 22 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 4968035 + ... + 4974234.

Almost surely, 2^30821033900 is an apocalyptic number.

It is an amenable number.

30821033900 is an abundant number, since it is smaller than the sum of its proper divisors (38218088980).

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

30821033900 is a wasteful number, since it uses less digits than its factorization.

30821033900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9942314 (or 9942307 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 30821033900 in words is "thirty billion, eight hundred twenty-one million, thirty-three thousand, nine hundred".