30960725120 has 128 divisors (see below), whose sum is σ = 79866440640. Its totient is φ = 11409076224.

The previous prime is 30960725113. The next prime is 30960725123. The reversal of 30960725120 is 2152706903.

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

It is not an unprimeable number, because it can be changed into a prime (30960725123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4547639 + ... + 4554441.

Almost surely, 2^30960725120 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 30960725120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39933220320).

30960725120 is an abundant number, since it is smaller than the sum of its proper divisors (48905715520).

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

30960725120 is a wasteful number, since it uses less digits than its factorization.

30960725120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7382 (or 7370 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 30960725120 in words is "thirty billion, nine hundred sixty million, seven hundred twenty-five thousand, one hundred twenty".