30534303128 has 64 divisors (see below), whose sum is σ = 67266201600. Its totient is φ = 12722716800.

The previous prime is 30534303101. The next prime is 30534303157. The reversal of 30534303128 is 82130343503.

It is a junction number, because it is equal to n+sod(n) for n = 30534303094 and 30534303103.

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, 359018 + ... + 435846.

It is an arithmetic number, because the mean of its divisors is an integer number (1051034400).

Almost surely, 2^30534303128 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 30534303128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33633100800).

30534303128 is an abundant number, since it is smaller than the sum of its proper divisors (36731898472).

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

30534303128 is a wasteful number, since it uses less digits than its factorization.

30534303128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77040 (or 77036 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 30534303128 in words is "thirty billion, five hundred thirty-four million, three hundred three thousand, one hundred twenty-eight".