1313071603 has 2 divisors, whose sum is σ = 1313071604. Its totient is φ = 1313071602.

The previous prime is 1313071601. The next prime is 1313071673. The reversal of 1313071603 is 3061703131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1313071603 - 2¹ = 1313071601 is a prime.

Together with 1313071601, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1313071601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656535801 + 656535802.

It is an arithmetic number, because the mean of its divisors is an integer number (656535802).

Almost surely, 2^1313071603 is an apocalyptic number.

1313071603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313071603 is an equidigital number, since it uses as much as digits as its factorization.

1313071603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 1313071603 is about 36236.3298776242. The cubic root of 1313071603 is about 1095.0387045249.

Adding to 1313071603 its reverse (3061703131), we get a palindrome (4374774734).

The spelling of 1313071603 in words is "one billion, three hundred thirteen million, seventy-one thousand, six hundred three".