1321342211443 has 8 divisors (see below), whose sum is σ = 1322081704512. Its totient is φ = 1320602874816.

The previous prime is 1321342211411. The next prime is 1321342211467. The reversal of 1321342211443 is 3441122431231.

It is a happy number.

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 1321342211443 - 2⁵ = 1321342211411 is a prime.

It is a super-3 number, since 3×1321342211443³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321342211143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19522246 + ... + 19589812.

It is an arithmetic number, because the mean of its divisors is an integer number (165260213064).

Almost surely, 2^{1321342211443} is an apocalyptic number.

1321342211443 is a deficient number, since it is larger than the sum of its proper divisors (739493069).

1321342211443 is an equidigital number, since it uses as much as digits as its factorization.

1321342211443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78221.

The product of its digits is 13824, while the sum is 31.

Adding to 1321342211443 its reverse (3441122431231), we get a palindrome (4762464642674).

The spelling of 1321342211443 in words is "one trillion, three hundred twenty-one billion, three hundred forty-two million, two hundred eleven thousand, four hundred forty-three".