1304323503 has 24 divisors (see below), whose sum is σ = 2047425408. Its totient is φ = 736340976.

The previous prime is 1304323499. The next prime is 1304323507. The reversal of 1304323503 is 3053234031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1304323499) and next prime (1304323507).

It is not a de Polignac number, because 1304323503 - 2² = 1304323499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304323507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41251 + ... + 65652.

It is an arithmetic number, because the mean of its divisors is an integer number (85309392).

Almost surely, 2^1304323503 is an apocalyptic number.

1304323503 is a deficient number, since it is larger than the sum of its proper divisors (743101905).

1304323503 is a wasteful number, since it uses less digits than its factorization.

1304323503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107003 (or 106996 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 1304323503 is about 36115.4191862700. The cubic root of 1304323503 is about 1092.6014520375.

Adding to 1304323503 its reverse (3053234031), we get a palindrome (4357557534).

The spelling of 1304323503 in words is "one billion, three hundred four million, three hundred twenty-three thousand, five hundred three".