1321341224143 has 16 divisors (see below), whose sum is σ = 1388194257600. Its totient is φ = 1255273645824.

The previous prime is 1321341224081. The next prime is 1321341224173. The reversal of 1321341224143 is 3414221431231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1321341224143 - 2¹³ = 1321341215951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321341224173) 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 15 ways as a sum of consecutive naturals, for example, 47734555 + ... + 47762227.

It is an arithmetic number, because the mean of its divisors is an integer number (86762141100).

Almost surely, 2^{1321341224143} is an apocalyptic number.

1321341224143 is a deficient number, since it is larger than the sum of its proper divisors (66853033457).

1321341224143 is a wasteful number, since it uses less digits than its factorization.

1321341224143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41778.

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

Adding to 1321341224143 its reverse (3414221431231), we get a palindrome (4735562655374).

The spelling of 1321341224143 in words is "one trillion, three hundred twenty-one billion, three hundred forty-one million, two hundred twenty-four thousand, one hundred forty-three".