1317420307 has 4 divisors (see below), whose sum is σ = 1505623216. Its totient is φ = 1129217400.

The previous prime is 1317420281. The next prime is 1317420343. The reversal of 1317420307 is 7030247131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1317420307 - 2⁷ = 1317420179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1317420607) 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, 94101444 + ... + 94101457.

It is an arithmetic number, because the mean of its divisors is an integer number (376405804).

Almost surely, 2^1317420307 is an apocalyptic number.

1317420307 is a deficient number, since it is larger than the sum of its proper divisors (188202909).

1317420307 is an equidigital number, since it uses as much as digits as its factorization.

1317420307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188202908.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 1317420307 is about 36296.2850302893. The cubic root of 1317420307 is about 1096.2462425897.

Adding to 1317420307 its reverse (7030247131), we get a palindrome (8347667438).

The spelling of 1317420307 in words is "one billion, three hundred seventeen million, four hundred twenty thousand, three hundred seven".