1321443535353 has 24 divisors (see below), whose sum is σ = 1775996661600. Its totient is φ = 873977005440.

The previous prime is 1321443535343. The next prime is 1321443535367. The reversal of 1321443535353 is 3535353441231.

It is not a de Polignac number, because 1321443535353 - 2⁴ = 1321443535337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1321443535303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41164533 + ... + 41196621.

It is an arithmetic number, because the mean of its divisors is an integer number (73999860900).

Almost surely, 2^{1321443535353} is an apocalyptic number.

It is an amenable number.

1321443535353 is a deficient number, since it is larger than the sum of its proper divisors (454553126247).

1321443535353 is an equidigital number, since it uses as much as digits as its factorization.

1321443535353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32873 (or 32692 counting only the distinct ones).

The product of its digits is 972000, while the sum is 42.

Adding to 1321443535353 its reverse (3535353441231), we get a palindrome (4856796976584).

The spelling of 1321443535353 in words is "one trillion, three hundred twenty-one billion, four hundred forty-three million, five hundred thirty-five thousand, three hundred fifty-three".