1323131130973 has 2 divisors, whose sum is σ = 1323131130974. Its totient is φ = 1323131130972.

The previous prime is 1323131130967. The next prime is 1323131131027. The reversal of 1323131130973 is 3790311313231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1076983177284 + 246147953689 = 1037778^2 + 496133^2 .

It is an emirp because it is prime and its reverse (3790311313231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323131130973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323131130913) 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, 661565565486 + 661565565487.

It is an arithmetic number, because the mean of its divisors is an integer number (661565565487).

Almost surely, 2^{1323131130973} is an apocalyptic number.

It is an amenable number.

1323131130973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323131130973 is an equidigital number, since it uses as much as digits as its factorization.

1323131130973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618, while the sum is 37.

The spelling of 1323131130973 in words is "one trillion, three hundred twenty-three billion, one hundred thirty-one million, one hundred thirty thousand, nine hundred seventy-three".