313003312221 has 8 divisors (see below), whose sum is σ = 418329052384. Its totient is φ = 208173223440.

The previous prime is 313003312213. The next prime is 313003312243. The reversal of 313003312221 is 122213300313.

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

It is not a de Polignac number, because 313003312221 - 2³ = 313003312213 is a prime.

It is a super-2 number, since 2×313003312221² (a number of 24 digits) contains 22 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 (313003312121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123911371 + ... + 123913896.

It is an arithmetic number, because the mean of its divisors is an integer number (52291131548).

Almost surely, 2^313003312221 is an apocalyptic number.

It is an amenable number.

313003312221 is a deficient number, since it is larger than the sum of its proper divisors (105325740163).

313003312221 is a wasteful number, since it uses less digits than its factorization.

313003312221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247825691.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 313003312221 its reverse (122213300313), we get a palindrome (435216612534).

The spelling of 313003312221 in words is "three hundred thirteen billion, three million, three hundred twelve thousand, two hundred twenty-one".