320021012330 has 8 divisors (see below), whose sum is σ = 576037822212. Its totient is φ = 128008404928.

The previous prime is 320021012317. The next prime is 320021012359. The reversal of 320021012330 is 33210120023.

It can be written as a sum of positive squares in 2 ways, for example, as 257699384881 + 62321627449 = 507641^2 + 249643^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 320021012299 and 320021012308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16001050607 + ... + 16001050626.

Almost surely, 2^320021012330 is an apocalyptic number.

320021012330 is a deficient number, since it is larger than the sum of its proper divisors (256016809882).

320021012330 is a wasteful number, since it uses less digits than its factorization.

320021012330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32002101240.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 320021012330 its reverse (33210120023), we get a palindrome (353231132353).

The spelling of 320021012330 in words is "three hundred twenty billion, twenty-one million, twelve thousand, three hundred thirty".