1317830056 has 16 divisors (see below), whose sum is σ = 2493602100. Its totient is φ = 652869504.

The previous prime is 1317830051. The next prime is 1317830099. The reversal of 1317830056 is 6500387131.

It can be written as a sum of positive squares in 2 ways, for example, as 1250753956 + 67076100 = 35366^2 + 8190^2 .

It is not an unprimeable number, because it can be changed into a prime (1317830051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754765 + ... + 756508.

Almost surely, 2^1317830056 is an apocalyptic number.

It is an amenable number.

1317830056 is a deficient number, since it is larger than the sum of its proper divisors (1175772044).

1317830056 is a wasteful number, since it uses less digits than its factorization.

1317830056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1511388 (or 1511384 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1317830056 is about 36301.9290947465. The cubic root of 1317830056 is about 1096.3598836801.

It can be divided in two parts, 13178 and 30056, that added together give a palindrome (43234).

The spelling of 1317830056 in words is "one billion, three hundred seventeen million, eight hundred thirty thousand, fifty-six".