1315003013 has 4 divisors (see below), whose sum is σ = 1318728588. Its totient is φ = 1311277440.

The previous prime is 1315003007. The next prime is 1315003061. The reversal of 1315003013 is 3103005131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3103005131 = 6091 ⋅509441.

It can be written as a sum of positive squares in 2 ways, for example, as 557762689 + 757240324 = 23617^2 + 27518^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1315003013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1315002982 and 1315003000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315003513) 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, 1862258 + ... + 1862963.

It is an arithmetic number, because the mean of its divisors is an integer number (329682147).

Almost surely, 2^1315003013 is an apocalyptic number.

It is an amenable number.

1315003013 is a deficient number, since it is larger than the sum of its proper divisors (3725575).

1315003013 is an equidigital number, since it uses as much as digits as its factorization.

1315003013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3725574.

The product of its (nonzero) digits is 135, while the sum is 17.

The square root of 1315003013 is about 36262.9702727176. The cubic root of 1315003013 is about 1095.5753425803.

Adding to 1315003013 its reverse (3103005131), we get a palindrome (4418008144).

The spelling of 1315003013 in words is "one billion, three hundred fifteen million, three thousand, thirteen".