1304105312 has 12 divisors (see below), whose sum is σ = 2567457396. Its totient is φ = 652052640.

The previous prime is 1304105311. The next prime is 1304105317. The reversal of 1304105312 is 2135014031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1304105311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20376614 + ... + 20376677.

It is an arithmetic number, because the mean of its divisors is an integer number (213954783).

Almost surely, 2^1304105312 is an apocalyptic number.

It is an amenable number.

1304105312 is a deficient number, since it is larger than the sum of its proper divisors (1263352084).

1304105312 is an equidigital number, since it uses as much as digits as its factorization.

1304105312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40753301 (or 40753293 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1304105312 is about 36112.3983141524. The cubic root of 1304105312 is about 1092.5405241319.

Adding to 1304105312 its reverse (2135014031), we get a palindrome (3439119343).

The spelling of 1304105312 in words is "one billion, three hundred four million, one hundred five thousand, three hundred twelve".