1312704330 has 64 divisors (see below), whose sum is σ = 3608064000. Its totient is φ = 299421504.

The previous prime is 1312704311. The next prime is 1312704347. The reversal of 1312704330 is 334072131.

1312704330 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1312704330.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98527 + ... + 111053.

It is an arithmetic number, because the mean of its divisors is an integer number (56376000).

Almost surely, 2^1312704330 is an apocalyptic number.

1312704330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312704330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1804032000).

1312704330 is an abundant number, since it is smaller than the sum of its proper divisors (2295359670).

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

1312704330 is a wasteful number, since it uses less digits than its factorization.

1312704330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13043.

The product of its (nonzero) digits is 1512, while the sum is 24.

The square root of 1312704330 is about 36231.2617776417. The cubic root of 1312704330 is about 1094.9365989854.

Adding to 1312704330 its reverse (334072131), we get a palindrome (1646776461).

The spelling of 1312704330 in words is "one billion, three hundred twelve million, seven hundred four thousand, three hundred thirty".