313202103110221 has 12 divisors (see below), whose sum is σ = 339347691181332. Its totient is φ = 288939268240896.

The previous prime is 313202103110207. The next prime is 313202103110233. The reversal of 313202103110221 is 122011301202313.

It can be written as a sum of positive squares in 6 ways, for example, as 20088870807721 + 293113232302500 = 4482061^2 + 17120550^2 .

It is not a de Polignac number, because 313202103110221 - 2¹⁷ = 313202102979149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313202103110192 and 313202103110201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313202103110201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 545755306 + ... + 546328891.

It is an arithmetic number, because the mean of its divisors is an integer number (28278974265111).

Almost surely, 2^{313202103110221} is an apocalyptic number.

It is an amenable number.

313202103110221 is a deficient number, since it is larger than the sum of its proper divisors (26145588071111).

313202103110221 is a wasteful number, since it uses less digits than its factorization.

313202103110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092085920 (or 1092085907 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 313202103110221 its reverse (122011301202313), we get a palindrome (435213404312534).

The spelling of 313202103110221 in words is "three hundred thirteen trillion, two hundred two billion, one hundred three million, one hundred ten thousand, two hundred twenty-one".