313442321313505 has 8 divisors (see below), whose sum is σ = 378040078905192. Its totient is φ = 249480994831488.

The previous prime is 313442321313437. The next prime is 313442321313647. The reversal of 313442321313505 is 505313123244313.

It can be written as a sum of positive squares in 4 ways, for example, as 23119162281121 + 290323159032384 = 4808239^2 + 17038872^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313442321313505 - 2¹⁹ = 313442320789217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159107776332 + ... + 159107778301.

It is an arithmetic number, because the mean of its divisors is an integer number (47255009863149).

Almost surely, 2^{313442321313505} is an apocalyptic number.

It is an amenable number.

313442321313505 is a deficient number, since it is larger than the sum of its proper divisors (64597757591687).

313442321313505 is a wasteful number, since it uses less digits than its factorization.

313442321313505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318215554835.

The product of its (nonzero) digits is 388800, while the sum is 40.

Adding to 313442321313505 its reverse (505313123244313), we get a palindrome (818755444557818).

The spelling of 313442321313505 in words is "three hundred thirteen trillion, four hundred forty-two billion, three hundred twenty-one million, three hundred thirteen thousand, five hundred five".