313230320221 has 16 divisors (see below), whose sum is σ = 390944026368. Its totient is φ = 244340006400.

The previous prime is 313230320177. The next prime is 313230320233. The reversal of 313230320221 is 122023032313.

It is not a de Polignac number, because 313230320221 - 2¹¹ = 313230318173 is a prime.

It is a super-2 number, since 2×313230320221² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313230320192 and 313230320201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313230320521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24233620 + ... + 24246541.

It is an arithmetic number, because the mean of its divisors is an integer number (24434001648).

Almost surely, 2^313230320221 is an apocalyptic number.

It is an amenable number.

313230320221 is a deficient number, since it is larger than the sum of its proper divisors (77713706147).

313230320221 is a wasteful number, since it uses less digits than its factorization.

313230320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48480252.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 313230320221 its reverse (122023032313), we get a palindrome (435253352534).

The spelling of 313230320221 in words is "three hundred thirteen billion, two hundred thirty million, three hundred twenty thousand, two hundred twenty-one".