1304351431 has 2 divisors, whose sum is σ = 1304351432. Its totient is φ = 1304351430.

The previous prime is 1304351407. The next prime is 1304351483. The reversal of 1304351431 is 1341534031.

It is a weak prime.

It is an emirp because it is prime and its reverse (1341534031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1304351431 - 2⁷ = 1304351303 is a prime.

It is a super-2 number, since 2×1304351431² = 3402665311103495522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1304351396 and 1304351405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1304351131) 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 as a sum of consecutive naturals, namely, 652175715 + 652175716.

It is an arithmetic number, because the mean of its divisors is an integer number (652175716).

Almost surely, 2^1304351431 is an apocalyptic number.

1304351431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304351431 is an equidigital number, since it uses as much as digits as its factorization.

1304351431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1304351431 is about 36115.8058334575. The cubic root of 1304351431 is about 1092.6092501938.

Adding to 1304351431 its reverse (1341534031), we get a palindrome (2645885462).

The spelling of 1304351431 in words is "one billion, three hundred four million, three hundred fifty-one thousand, four hundred thirty-one".