313173767813 has 2 divisors, whose sum is σ = 313173767814. Its totient is φ = 313173767812.

The previous prime is 313173767761. The next prime is 313173767857. The reversal of 313173767813 is 318767371313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 241024047364 + 72149720449 = 490942^2 + 268607^2 .

It is a cyclic number.

It is not a de Polignac number, because 313173767813 - 2¹⁶ = 313173702277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313173767513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156586883906 + 156586883907.

It is an arithmetic number, because the mean of its divisors is an integer number (156586883907).

Almost surely, 2^313173767813 is an apocalyptic number.

It is an amenable number.

313173767813 is a deficient number, since it is larger than the sum of its proper divisors (1).

313173767813 is an equidigital number, since it uses as much as digits as its factorization.

313173767813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1333584, while the sum is 50.

The spelling of 313173767813 in words is "three hundred thirteen billion, one hundred seventy-three million, seven hundred sixty-seven thousand, eight hundred thirteen".