30081008000 has 128 divisors (see below), whose sum is σ = 75017124000. Its totient is φ = 11995699200.

The previous prime is 30081007981. The next prime is 30081008011. The reversal of 30081008000 is 80018003.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5581307 + ... + 5586693.

Almost surely, 2^30081008000 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 30081008000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37508562000).

30081008000 is an abundant number, since it is smaller than the sum of its proper divisors (44936116000).

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

30081008000 is an equidigital number, since it uses as much as digits as its factorization.

30081008000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5765 (or 5743 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The spelling of 30081008000 in words is "thirty billion, eighty-one million, eight thousand".