313131010331263 has 2 divisors, whose sum is σ = 313131010331264. Its totient is φ = 313131010331262.

The previous prime is 313131010331221. The next prime is 313131010331341. The reversal of 313131010331263 is 362133010131313.

It is a weak prime.

It is an emirp because it is prime and its reverse (362133010131313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313131010331263 - 2⁹ = 313131010330751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313131010331863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156565505165631 + 156565505165632.

It is an arithmetic number, because the mean of its divisors is an integer number (156565505165632).

Almost surely, 2^{313131010331263} is an apocalyptic number.

313131010331263 is a deficient number, since it is larger than the sum of its proper divisors (1).

313131010331263 is an equidigital number, since it uses as much as digits as its factorization.

313131010331263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 31.

Adding to 313131010331263 its reverse (362133010131313), we get a palindrome (675264020462576).

The spelling of 313131010331263 in words is "three hundred thirteen trillion, one hundred thirty-one billion, ten million, three hundred thirty-one thousand, two hundred sixty-three".