304103431 has 2 divisors, whose sum is σ = 304103432. Its totient is φ = 304103430.

The previous prime is 304103413. The next prime is 304103441. The reversal of 304103431 is 134301403.

Together with previous prime (304103413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (134301403) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304103431 is a prime.

It is a super-2 number, since 2×304103431² = 184957793491943522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 304103399 and 304103408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (304103441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152051715 + 152051716.

It is an arithmetic number, because the mean of its divisors is an integer number (152051716).

Almost surely, 2^304103431 is an apocalyptic number.

304103431 is a deficient number, since it is larger than the sum of its proper divisors (1).

304103431 is an equidigital number, since it uses as much as digits as its factorization.

304103431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 304103431 is about 17438.5616092612. The cubic root of 304103431 is about 672.4713298355.

Adding to 304103431 its reverse (134301403), we get a palindrome (438404834).

The spelling of 304103431 in words is "three hundred four million, one hundred three thousand, four hundred thirty-one".