313261530065 has 24 divisors (see below), whose sum is σ = 414043385280. Its totient is φ = 227358537120.

The previous prime is 313261530053. The next prime is 313261530103. The reversal of 313261530065 is 560035162313.

It is not a de Polignac number, because 313261530065 - 2³⁴ = 296081660881 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 236975 + ... + 826244.

It is an arithmetic number, because the mean of its divisors is an integer number (17251807720).

Almost surely, 2^313261530065 is an apocalyptic number.

It is an amenable number.

313261530065 is a deficient number, since it is larger than the sum of its proper divisors (100781855215).

313261530065 is a wasteful number, since it uses less digits than its factorization.

313261530065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063733 (or 1063722 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 35.

Adding to 313261530065 its reverse (560035162313), we get a palindrome (873296692378).

The spelling of 313261530065 in words is "three hundred thirteen billion, two hundred sixty-one million, five hundred thirty thousand, sixty-five".