1331322030320 has 40 divisors (see below), whose sum is σ = 3095868868080. Its totient is φ = 532435023360.

The previous prime is 1331322030299. The next prime is 1331322030347. The reversal of 1331322030320 is 230302231331.

It is a tau number, because it is divible by the number of its divisors (40).

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, 1007486 + ... + 1917725.

It is an arithmetic number, because the mean of its divisors is an integer number (77396721702).

Almost surely, 2^{1331322030320} is an apocalyptic number.

1331322030320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331322030320 is an abundant number, since it is smaller than the sum of its proper divisors (1764546837760).

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

1331322030320 is a wasteful number, since it uses less digits than its factorization.

1331322030320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2930913 (or 2930907 counting only the distinct ones).

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

Adding to 1331322030320 its reverse (230302231331), we get a palindrome (1561624261651).

The spelling of 1331322030320 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-two million, thirty thousand, three hundred twenty".