313385827309 has 4 divisors (see below), whose sum is σ = 329879818240. Its totient is φ = 296891836380.

The previous prime is 313385827291. The next prime is 313385827369. The reversal of 313385827309 is 903728583313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 903728583313 = 29 ⋅31163054597.

It is a cyclic number.

It is not a de Polignac number, because 313385827309 - 2⁵ = 313385827277 is a prime.

It is a super-3 number, since 3×313385827309³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313385827369) 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, 8246995437 + ... + 8246995474.

It is an arithmetic number, because the mean of its divisors is an integer number (82469954560).

Almost surely, 2^313385827309 is an apocalyptic number.

It is an amenable number.

313385827309 is a deficient number, since it is larger than the sum of its proper divisors (16493990931).

313385827309 is a wasteful number, since it uses less digits than its factorization.

313385827309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16493990930.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 313385827309 in words is "three hundred thirteen billion, three hundred eighty-five million, eight hundred twenty-seven thousand, three hundred nine".