30505505112 has 96 divisors (see below), whose sum is σ = 85429868160. Its totient is φ = 9823680000.

The previous prime is 30505505111. The next prime is 30505505117. The reversal of 30505505112 is 21150550503.

30505505112 is a `hidden beast` number, since 3 + 0 + 50 + 550 + 51 + 12 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30505505111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1330062 + ... + 1352802.

It is an arithmetic number, because the mean of its divisors is an integer number (889894460).

Almost surely, 2^30505505112 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 30505505112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42714934080).

30505505112 is an abundant number, since it is smaller than the sum of its proper divisors (54924363048).

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

30505505112 is a wasteful number, since it uses less digits than its factorization.

30505505112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23385 (or 23378 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The spelling of 30505505112 in words is "thirty billion, five hundred five million, five hundred five thousand, one hundred twelve".