1304312330 has 16 divisors (see below), whose sum is σ = 2363313024. Its totient is φ = 518269200.

The previous prime is 1304312327. The next prime is 1304312333. The reversal of 1304312330 is 332134031.

It is an interprime number because it is at equal distance from previous prime (1304312327) and next prime (1304312333).

It is not an unprimeable number, because it can be changed into a prime (1304312333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430382 + ... + 433401.

It is an arithmetic number, because the mean of its divisors is an integer number (147707064).

Almost surely, 2^1304312330 is an apocalyptic number.

1304312330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1304312330 is a deficient number, since it is larger than the sum of its proper divisors (1059000694).

1304312330 is a wasteful number, since it uses less digits than its factorization.

1304312330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863941.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1304312330 is about 36115.2645013158. The cubic root of 1304312330 is about 1092.5983322412.

Adding to 1304312330 its reverse (332134031), we get a palindrome (1636446361).

The spelling of 1304312330 in words is "one billion, three hundred four million, three hundred twelve thousand, three hundred thirty".