1313302203121 has 2 divisors, whose sum is σ = 1313302203122. Its totient is φ = 1313302203120.

The previous prime is 1313302203097. The next prime is 1313302203131. The reversal of 1313302203121 is 1213022033131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1173833566096 + 139468637025 = 1083436^2 + 373455^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313302203121 - 2¹¹ = 1313302201073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1313302203092 and 1313302203101.

It is not a weakly prime, because it can be changed into another prime (1313302203131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656651101560 + 656651101561.

It is an arithmetic number, because the mean of its divisors is an integer number (656651101561).

Almost surely, 2^{1313302203121} is an apocalyptic number.

It is an amenable number.

1313302203121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313302203121 is an equidigital number, since it uses as much as digits as its factorization.

1313302203121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1313302203121 its reverse (1213022033131), we get a palindrome (2526324236252).

The spelling of 1313302203121 in words is "one trillion, three hundred thirteen billion, three hundred two million, two hundred three thousand, one hundred twenty-one".