313121415205 has 8 divisors (see below), whose sum is σ = 375749033472. Its totient is φ = 250494908688.

The previous prime is 313121415163. The next prime is 313121415227. The reversal of 313121415205 is 502514121313.

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 313121415205 - 2²⁵ = 313087860773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 585604 + ... + 984466.

It is an arithmetic number, because the mean of its divisors is an integer number (46968629184).

Almost surely, 2^313121415205 is an apocalyptic number.

It is an amenable number.

313121415205 is a deficient number, since it is larger than the sum of its proper divisors (62627618267).

313121415205 is a wasteful number, since it uses less digits than its factorization.

313121415205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555875.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 313121415205 its reverse (502514121313), we get a palindrome (815635536518).

The spelling of 313121415205 in words is "three hundred thirteen billion, one hundred twenty-one million, four hundred fifteen thousand, two hundred five".