1300312313 has 4 divisors (see below), whose sum is σ = 1301255268. Its totient is φ = 1299369360.

The previous prime is 1300312297. The next prime is 1300312319. The reversal of 1300312313 is 3132130031.

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 948824809 + 351487504 = 30803^2 + 18748^2 .

It is a cyclic number.

It is not a de Polignac number, because 1300312313 - 2⁴ = 1300312297 is a prime.

It is a super-2 number, since 2×1300312313² = 3381624222678819938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1300312291 and 1300312300.

It is not an unprimeable number, because it can be changed into a prime (1300312319) 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, 469406 + ... + 472167.

It is an arithmetic number, because the mean of its divisors is an integer number (325313817).

Almost surely, 2^1300312313 is an apocalyptic number.

It is an amenable number.

1300312313 is a deficient number, since it is larger than the sum of its proper divisors (942955).

1300312313 is an equidigital number, since it uses as much as digits as its factorization.

1300312313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942954.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1300312313 is about 36059.8434966099. The cubic root of 1300312313 is about 1091.4802750850.

Adding to 1300312313 its reverse (3132130031), we get a palindrome (4432442344).

The spelling of 1300312313 in words is "one billion, three hundred million, three hundred twelve thousand, three hundred thirteen".