1317330812 has 24 divisors (see below), whose sum is σ = 2640798720. Its totient is φ = 563255280.

The previous prime is 1317330811. The next prime is 1317330877. The reversal of 1317330812 is 2180337131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317330811) 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, 42512 + ... + 66647.

It is an arithmetic number, because the mean of its divisors is an integer number (110033280).

Almost surely, 2^1317330812 is an apocalyptic number.

It is an amenable number.

1317330812 is an abundant number, since it is smaller than the sum of its proper divisors (1323467908).

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

1317330812 is a wasteful number, since it uses less digits than its factorization.

1317330812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109601 (or 109599 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1317330812 is about 36295.0521696829. The cubic root of 1317330812 is about 1096.2214186266.

Adding to 1317330812 its reverse (2180337131), we get a palindrome (3497667943).

The spelling of 1317330812 in words is "one billion, three hundred seventeen million, three hundred thirty thousand, eight hundred twelve".