1321331525333 has 8 divisors (see below), whose sum is σ = 1338190716096. Its totient is φ = 1304549848800.

The previous prime is 1321331525309. The next prime is 1321331525359. The reversal of 1321331525333 is 3335251331231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1321331525333 - 2³² = 1317036558037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1321331525293 and 1321331525302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321331527333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19344248 + ... + 19412433.

It is an arithmetic number, because the mean of its divisors is an integer number (167273839512).

Almost surely, 2^{1321331525333} is an apocalyptic number.

It is an amenable number.

1321331525333 is a deficient number, since it is larger than the sum of its proper divisors (16859190763).

1321331525333 is a wasteful number, since it uses less digits than its factorization.

1321331525333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38757115.

The product of its digits is 72900, while the sum is 35.

Adding to 1321331525333 its reverse (3335251331231), we get a palindrome (4656582856564).

The spelling of 1321331525333 in words is "one trillion, three hundred twenty-one billion, three hundred thirty-one million, five hundred twenty-five thousand, three hundred thirty-three".