1313323305031 has 2 divisors, whose sum is σ = 1313323305032. Its totient is φ = 1313323305030.

The previous prime is 1313323305023. The next prime is 1313323305061. The reversal of 1313323305031 is 1305033233131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1313323305031 - 2³ = 1313323305023 is a prime.

It is a super-2 number, since 2×1313323305031² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313323305001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656661652515 + 656661652516.

It is an arithmetic number, because the mean of its divisors is an integer number (656661652516).

Almost surely, 2^{1313323305031} is an apocalyptic number.

1313323305031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313323305031 is an equidigital number, since it uses as much as digits as its factorization.

1313323305031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7290, while the sum is 28.

Adding to 1313323305031 its reverse (1305033233131), we get a palindrome (2618356538162).

The spelling of 1313323305031 in words is "one trillion, three hundred thirteen billion, three hundred twenty-three million, three hundred five thousand, thirty-one".