1303431304 has 32 divisors (see below), whose sum is σ = 2840414400. Its totient is φ = 549144000.

The previous prime is 1303431299. The next prime is 1303431317. The reversal of 1303431304 is 4031343031.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193947 + ... + 200554.

It is an arithmetic number, because the mean of its divisors is an integer number (88762950).

Almost surely, 2^1303431304 is an apocalyptic number.

1303431304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1303431304 is an abundant number, since it is smaller than the sum of its proper divisors (1536983096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1303431304 is a wasteful number, since it uses less digits than its factorization.

1303431304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394573 (or 394569 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 1303431304 is about 36103.0650222388. The cubic root of 1303431304 is about 1092.3522704313.

Adding to 1303431304 its reverse (4031343031), we get a palindrome (5334774335).

The spelling of 1303431304 in words is "one billion, three hundred three million, four hundred thirty-one thousand, three hundred four".