1313010302221 has 2 divisors, whose sum is σ = 1313010302222. Its totient is φ = 1313010302220.

The previous prime is 1313010302203. The next prime is 1313010302321. The reversal of 1313010302221 is 1222030103131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1243570674025 + 69439628196 = 1115155^2 + 263514^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313010302221 - 2¹⁷ = 1313010171149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313010302321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656505151110 + 656505151111.

It is an arithmetic number, because the mean of its divisors is an integer number (656505151111).

Almost surely, 2^{1313010302221} is an apocalyptic number.

It is an amenable number.

1313010302221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313010302221 is an equidigital number, since it uses as much as digits as its factorization.

1313010302221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1313010302221 its reverse (1222030103131), we get a palindrome (2535040405352).

The spelling of 1313010302221 in words is "one trillion, three hundred thirteen billion, ten million, three hundred two thousand, two hundred twenty-one".