313201030221 has 36 divisors (see below), whose sum is σ = 481203538452. Its totient is φ = 196262805504.

The previous prime is 313201030189. The next prime is 313201030243. The reversal of 313201030221 is 122030102313.

313201030221 is a `hidden beast` number, since 31 + 320 + 10 + 302 + 2 + 1 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 9696996 + 313191333225 = 3114^2 + 559635^2 .

It is not a de Polignac number, because 313201030221 - 2⁵ = 313201030189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313201030194 and 313201030203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313201035221) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 1932685 + ... + 2088461.

It is an arithmetic number, because the mean of its divisors is an integer number (13366764957).

Almost surely, 2^313201030221 is an apocalyptic number.

It is an amenable number.

313201030221 is a deficient number, since it is larger than the sum of its proper divisors (168002508231).

313201030221 is a wasteful number, since it uses less digits than its factorization.

313201030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156590 (or 156570 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 313201030221 its reverse (122030102313), we get a palindrome (435231132534).

The spelling of 313201030221 in words is "three hundred thirteen billion, two hundred one million, thirty thousand, two hundred twenty-one".