313522809473 has 2 divisors, whose sum is σ = 313522809474. Its totient is φ = 313522809472.

The previous prime is 313522809449. The next prime is 313522809499. The reversal of 313522809473 is 374908225313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188141665009 + 125381144464 = 433753^2 + 354092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313522809473 is a prime.

It is not a weakly prime, because it can be changed into another prime (313522809373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156761404736 + 156761404737.

It is an arithmetic number, because the mean of its divisors is an integer number (156761404737).

Almost surely, 2^313522809473 is an apocalyptic number.

It is an amenable number.

313522809473 is a deficient number, since it is larger than the sum of its proper divisors (1).

313522809473 is an equidigital number, since it uses as much as digits as its factorization.

313522809473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 313522809473 in words is "three hundred thirteen billion, five hundred twenty-two million, eight hundred nine thousand, four hundred seventy-three".