2012321330320 has 80 divisors (see below), whose sum is σ = 5661556172928. Its totient is φ = 649354106880.

The previous prime is 2012321330309. The next prime is 2012321330321. The reversal of 2012321330320 is 230331232102.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 2012321330291 and 2012321330300.

It is not an unprimeable number, because it can be changed into a prime (2012321330321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105679626 + ... + 105698665.

Almost surely, 2^{2012321330320} is an apocalyptic number.

2012321330320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012321330320 is an abundant number, since it is smaller than the sum of its proper divisors (3649234842608).

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

2012321330320 is a wasteful number, since it uses less digits than its factorization.

2012321330320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211378328 (or 211378322 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 2012321330320 its reverse (230331232102), we get a palindrome (2242652562422).

The spelling of 2012321330320 in words is "two trillion, twelve billion, three hundred twenty-one million, three hundred thirty thousand, three hundred twenty".