1312313473 has 2 divisors, whose sum is σ = 1312313474. Its totient is φ = 1312313472.

The previous prime is 1312313411. The next prime is 1312313501. The reversal of 1312313473 is 3743132131.

It is an a-pointer prime, because the next prime (1312313501) can be obtained adding 1312313473 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1246654864 + 65658609 = 35308^2 + 8103^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312313473 - 2⁹ = 1312312961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1312313573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656156736 + 656156737.

It is an arithmetic number, because the mean of its divisors is an integer number (656156737).

Almost surely, 2^1312313473 is an apocalyptic number.

It is an amenable number.

1312313473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312313473 is an equidigital number, since it uses as much as digits as its factorization.

1312313473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 28.

The square root of 1312313473 is about 36225.8674568326. The cubic root of 1312313473 is about 1094.8279159391.

The spelling of 1312313473 in words is "one billion, three hundred twelve million, three hundred thirteen thousand, four hundred seventy-three".