1513003312313 has 4 divisors (see below), whose sum is σ = 1530003349620. Its totient is φ = 1496003275008.

The previous prime is 1513003312279. The next prime is 1513003312321. The reversal of 1513003312313 is 3132133003151.

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

It can be written as a sum of positive squares in 2 ways, for example, as 614086947769 + 898916364544 = 783637^2 + 948112^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1513003312313 is a prime.

It is a super-3 number, since 3×1513003312313³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1513003312343) 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, 8500018520 + ... + 8500018697.

It is an arithmetic number, because the mean of its divisors is an integer number (382500837405).

Almost surely, 2^{1513003312313} is an apocalyptic number.

It is an amenable number.

1513003312313 is a deficient number, since it is larger than the sum of its proper divisors (17000037307).

1513003312313 is an equidigital number, since it uses as much as digits as its factorization.

1513003312313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17000037306.

The product of its (nonzero) digits is 2430, while the sum is 26.

Adding to 1513003312313 its reverse (3132133003151), we get a palindrome (4645136315464).

The spelling of 1513003312313 in words is "one trillion, five hundred thirteen billion, three million, three hundred twelve thousand, three hundred thirteen".