1331332320020 has 24 divisors (see below), whose sum is σ = 2799194987904. Its totient is φ = 531885858336.

The previous prime is 1331332320013. The next prime is 1331332320067. The reversal of 1331332320020 is 200232331331.

It is a congruent number.

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, 40424984 + ... + 40457903.

It is an arithmetic number, because the mean of its divisors is an integer number (116633124496).

Almost surely, 2^{1331332320020} is an apocalyptic number.

1331332320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331332320020 is an abundant number, since it is smaller than the sum of its proper divisors (1467862667884).

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

1331332320020 is a wasteful number, since it uses less digits than its factorization.

1331332320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80883719 (or 80883717 counting only the distinct ones).

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

Adding to 1331332320020 its reverse (200232331331), we get a palindrome (1531564651351).

The spelling of 1331332320020 in words is "one trillion, three hundred thirty-one billion, three hundred thirty-two million, three hundred twenty thousand, twenty".