313330221 has 16 divisors (see below), whose sum is σ = 471805120. Its totient is φ = 205461360.

The previous prime is 313330169. The next prime is 313330261. The reversal of 313330221 is 122033313.

313330221 is a `hidden beast` number, since 313 + 330 + 2 + 21 = 666.

It is not a de Polignac number, because 313330221 - 2¹³ = 313322029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313330194 and 313330203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313330261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93475 + ... + 96768.

It is an arithmetic number, because the mean of its divisors is an integer number (29487820).

Almost surely, 2^313330221 is an apocalyptic number.

It is an amenable number.

313330221 is a deficient number, since it is larger than the sum of its proper divisors (158474899).

313330221 is a wasteful number, since it uses less digits than its factorization.

313330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190313 (or 190307 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 313330221 is about 17701.1361499764. The cubic root of 313330221 is about 679.2048238180.

Adding to 313330221 its reverse (122033313), we get a palindrome (435363534).

The spelling of 313330221 in words is "three hundred thirteen million, three hundred thirty thousand, two hundred twenty-one".