320030002320 has 160 divisors (see below), whose sum is σ = 1135203151872. Its totient is φ = 73060517376.

The previous prime is 320030002249. The next prime is 320030002337. The reversal of 320030002320 is 23200030023.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 320030002320.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1266909 + ... + 1498371.

Almost surely, 2^320030002320 is an apocalyptic number.

320030002320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320030002320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (567601575936).

320030002320 is an abundant number, since it is smaller than the sum of its proper divisors (815173149552).

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

320030002320 is a wasteful number, since it uses less digits than its factorization.

320030002320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232309 (or 232303 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

Adding to 320030002320 its reverse (23200030023), we get a palindrome (343230032343).

The spelling of 320030002320 in words is "three hundred twenty billion, thirty million, two thousand, three hundred twenty".