1304320352143 has 4 divisors (see below), whose sum is σ = 1349296916040. Its totient is φ = 1259343788248.

The previous prime is 1304320352141. The next prime is 1304320352161. The reversal of 1304320352143 is 3412530234031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1304320352143 - 2¹ = 1304320352141 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 (1304320352141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22488281905 + ... + 22488281962.

It is an arithmetic number, because the mean of its divisors is an integer number (337324229010).

Almost surely, 2^{1304320352143} is an apocalyptic number.

1304320352143 is a deficient number, since it is larger than the sum of its proper divisors (44976563897).

1304320352143 is an equidigital number, since it uses as much as digits as its factorization.

1304320352143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44976563896.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 1304320352143 its reverse (3412530234031), we get a palindrome (4716850586174).

The spelling of 1304320352143 in words is "one trillion, three hundred four billion, three hundred twenty million, three hundred fifty-two thousand, one hundred forty-three".