313481401663 has 2 divisors, whose sum is σ = 313481401664. Its totient is φ = 313481401662.

The previous prime is 313481401643. The next prime is 313481401691. The reversal of 313481401663 is 366104184313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313481401663 - 2¹⁷ = 313481270591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313481401613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156740700831 + 156740700832.

It is an arithmetic number, because the mean of its divisors is an integer number (156740700832).

Almost surely, 2^313481401663 is an apocalyptic number.

313481401663 is a deficient number, since it is larger than the sum of its proper divisors (1).

313481401663 is an equidigital number, since it uses as much as digits as its factorization.

313481401663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 40.

Adding to 313481401663 its reverse (366104184313), we get a palindrome (679585585976).

The spelling of 313481401663 in words is "three hundred thirteen billion, four hundred eighty-one million, four hundred one thousand, six hundred sixty-three".