313202001977 has 2 divisors, whose sum is σ = 313202001978. Its totient is φ = 313202001976.

The previous prime is 313202001961. The next prime is 313202002039. The reversal of 313202001977 is 779100202313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211382935696 + 101819066281 = 459764^2 + 319091^2 .

It is an emirp because it is prime and its reverse (779100202313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313202001977 - 2⁴ = 313202001961 is a prime.

It is not a weakly prime, because it can be changed into another prime (313202001877) 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, 156601000988 + 156601000989.

It is an arithmetic number, because the mean of its divisors is an integer number (156601000989).

Almost surely, 2^313202001977 is an apocalyptic number.

It is an amenable number.

313202001977 is a deficient number, since it is larger than the sum of its proper divisors (1).

313202001977 is an equidigital number, since it uses as much as digits as its factorization.

313202001977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 35.

The spelling of 313202001977 in words is "three hundred thirteen billion, two hundred two million, one thousand, nine hundred seventy-seven".