1320330321320 has 32 divisors (see below), whose sum is σ = 2970850278600. Its totient is φ = 528113096448.

The previous prime is 1320330321319. The next prime is 1320330321341. The reversal of 1320330321320 is 231230330231.

It can be written as a sum of positive squares in 4 ways, for example, as 786311374564 + 534018946756 = 886742^2 + 730766^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556622 + ... + 1717698.

Almost surely, 2^{1320330321320} is an apocalyptic number.

1320330321320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320330321320 is an abundant number, since it is smaller than the sum of its proper divisors (1650519957280).

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

1320330321320 is a wasteful number, since it uses less digits than its factorization.

1320330321320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189517 (or 1189513 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 1320330321320 its reverse (231230330231), we get a palindrome (1551560651551).

The spelling of 1320330321320 in words is "one trillion, three hundred twenty billion, three hundred thirty million, three hundred twenty-one thousand, three hundred twenty".