1313143003 has 4 divisors (see below), whose sum is σ = 1313421768. Its totient is φ = 1312864240.

The previous prime is 1313143001. The next prime is 1313143009. The reversal of 1313143003 is 3003413131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3003413131 = 43 ⋅69846817.

It is a cyclic number.

It is not a de Polignac number, because 1313143003 - 2¹ = 1313143001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313143001) 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 in 3 ways as a sum of consecutive naturals, for example, 132193 + ... + 141778.

It is an arithmetic number, because the mean of its divisors is an integer number (328355442).

Almost surely, 2^1313143003 is an apocalyptic number.

1313143003 is a deficient number, since it is larger than the sum of its proper divisors (278765).

1313143003 is an equidigital number, since it uses as much as digits as its factorization.

1313143003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278764.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1313143003 is about 36237.3150633432. The cubic root of 1313143003 is about 1095.0585522230.

Adding to 1313143003 its reverse (3003413131), we get a palindrome (4316556134).

The spelling of 1313143003 in words is "one billion, three hundred thirteen million, one hundred forty-three thousand, three".