1331133221320 has 32 divisors (see below), whose sum is σ = 3422913998400. Its totient is φ = 456388532928.

The previous prime is 1331133221311. The next prime is 1331133221333. The reversal of 1331133221320 is 231223311331.

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, 2377023330 + ... + 2377023889.

It is an arithmetic number, because the mean of its divisors is an integer number (106966062450).

Almost surely, 2^{1331133221320} is an apocalyptic number.

1331133221320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331133221320 is an abundant number, since it is smaller than the sum of its proper divisors (2091780777080).

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

1331133221320 is a wasteful number, since it uses less digits than its factorization.

1331133221320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4754047237 (or 4754047233 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1331133221320 its reverse (231223311331), we get a palindrome (1562356532651).

The spelling of 1331133221320 in words is "one trillion, three hundred thirty-one billion, one hundred thirty-three million, two hundred twenty-one thousand, three hundred twenty".