1303130431 has 4 divisors (see below), whose sum is σ = 1303465864. Its totient is φ = 1302795000.

The previous prime is 1303130377. The next prime is 1303130443. The reversal of 1303130431 is 1340313031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1340313031 = 17 ⋅78841943.

It is a cyclic number.

It is not a de Polignac number, because 1303130431 - 2¹¹ = 1303128383 is a prime.

It is a super-2 number, since 2×1303130431² = 3396297840396491522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1303130399 and 1303130408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303130471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161820 + ... + 169681.

It is an arithmetic number, because the mean of its divisors is an integer number (325866466).

Almost surely, 2^1303130431 is an apocalyptic number.

1303130431 is a deficient number, since it is larger than the sum of its proper divisors (335433).

1303130431 is an equidigital number, since it uses as much as digits as its factorization.

1303130431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335432.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1303130431 is about 36098.8979194656. The cubic root of 1303130431 is about 1092.2682141932.

Adding to 1303130431 its reverse (1340313031), we get a palindrome (2643443462).

The spelling of 1303130431 in words is "one billion, three hundred three million, one hundred thirty thousand, four hundred thirty-one".