30321320004 has 120 divisors (see below), whose sum is σ = 80508637440. Its totient is φ = 9949205376.

The previous prime is 30321319997. The next prime is 30321320023. The reversal of 30321320004 is 40002312303.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 17004897 + ... + 17006679.

It is an arithmetic number, because the mean of its divisors is an integer number (670905312).

Almost surely, 2^30321320004 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 30321320004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40254318720).

30321320004 is an abundant number, since it is smaller than the sum of its proper divisors (50187317436).

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

30321320004 is a wasteful number, since it uses less digits than its factorization.

30321320004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591 (or 2580 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30321320004 its reverse (40002312303), we get a palindrome (70323632307).

The spelling of 30321320004 in words is "thirty billion, three hundred twenty-one million, three hundred twenty thousand, four".