313043231197 has 2 divisors, whose sum is σ = 313043231198. Its totient is φ = 313043231196.

The previous prime is 313043231093. The next prime is 313043231231. The reversal of 313043231197 is 791132340313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 286855576921 + 26187654276 = 535589^2 + 161826^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313043231197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313043231797) 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, 156521615598 + 156521615599.

It is an arithmetic number, because the mean of its divisors is an integer number (156521615599).

Almost surely, 2^313043231197 is an apocalyptic number.

It is an amenable number.

313043231197 is a deficient number, since it is larger than the sum of its proper divisors (1).

313043231197 is an equidigital number, since it uses as much as digits as its factorization.

313043231197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 37.

The spelling of 313043231197 in words is "three hundred thirteen billion, forty-three million, two hundred thirty-one thousand, one hundred ninety-seven".