1355133517321 has 8 divisors (see below), whose sum is σ = 1435022831520. Its totient is φ = 1275263711808.

The previous prime is 1355133517273. The next prime is 1355133517379. The reversal of 1355133517321 is 1237153315531.

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 1355133517321 - 2³¹ = 1352986033673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1355133517721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4734031 + ... + 5012116.

It is an arithmetic number, because the mean of its divisors is an integer number (179377853940).

Almost surely, 2^{1355133517321} is an apocalyptic number.

It is an amenable number.

1355133517321 is a deficient number, since it is larger than the sum of its proper divisors (79889314199).

1355133517321 is an equidigital number, since it uses as much as digits as its factorization.

1355133517321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9754343.

The product of its digits is 141750, while the sum is 40.

The spelling of 1355133517321 in words is "one trillion, three hundred fifty-five billion, one hundred thirty-three million, five hundred seventeen thousand, three hundred twenty-one".