1304320350431 has 16 divisors (see below), whose sum is σ = 1552502269440. Its totient is φ = 1072452195360.

The previous prime is 1304320350409. The next prime is 1304320350451. The reversal of 1304320350431 is 1340530234031.

It is not a de Polignac number, because 1304320350431 - 2³⁰ = 1303246608607 is a prime.

It is a super-2 number, since 2×1304320350431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1304320350394 and 1304320350403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304320350401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35446301 + ... + 35483078.

It is an arithmetic number, because the mean of its divisors is an integer number (97031391840).

Almost surely, 2^{1304320350431} is an apocalyptic number.

1304320350431 is a deficient number, since it is larger than the sum of its proper divisors (248181919009).

1304320350431 is an equidigital number, since it uses as much as digits as its factorization.

1304320350431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70929494.

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 1304320350431 its reverse (1340530234031), we get a palindrome (2644850584462).

The spelling of 1304320350431 in words is "one trillion, three hundred four billion, three hundred twenty million, three hundred fifty thousand, four hundred thirty-one".