313000208977 has 2 divisors, whose sum is σ = 313000208978. Its totient is φ = 313000208976.

The previous prime is 313000208947. The next prime is 313000208981. The reversal of 313000208977 is 779802000313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208852656016 + 104147552961 = 457004^2 + 322719^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313000208977 is a prime.

It is not a weakly prime, because it can be changed into another prime (313000208947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156500104488 + 156500104489.

It is an arithmetic number, because the mean of its divisors is an integer number (156500104489).

Almost surely, 2^313000208977 is an apocalyptic number.

It is an amenable number.

313000208977 is a deficient number, since it is larger than the sum of its proper divisors (1).

313000208977 is an equidigital number, since it uses as much as digits as its factorization.

313000208977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 40.

The spelling of 313000208977 in words is "three hundred thirteen billion, two hundred eight thousand, nine hundred seventy-seven".