1317321007 has 8 divisors (see below), whose sum is σ = 1414456992. Its totient is φ = 1222368000.

The previous prime is 1317321001. The next prime is 1317321011. The reversal of 1317321007 is 7001237131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1317321007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1317321001) 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, 544494 + ... + 546907.

It is an arithmetic number, because the mean of its divisors is an integer number (176807124).

Almost surely, 2^1317321007 is an apocalyptic number.

1317321007 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1317321007 is a deficient number, since it is larger than the sum of its proper divisors (97135985).

1317321007 is a wasteful number, since it uses less digits than its factorization.

1317321007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091489.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 1317321007 is about 36294.9170959241. The cubic root of 1317321007 is about 1096.2186988649.

Adding to 1317321007 its reverse (7001237131), we get a palindrome (8318558138).

The spelling of 1317321007 in words is "one billion, three hundred seventeen million, three hundred twenty-one thousand, seven".