1023366656317 has 2 divisors, whose sum is σ = 1023366656318. Its totient is φ = 1023366656316.

The previous prime is 1023366656303. The next prime is 1023366656341. The reversal of 1023366656317 is 7136566633201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 878220133956 + 145146522361 = 937134^2 + 380981^2 .

It is an emirp because it is prime and its reverse (7136566633201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1023366656317 - 2³⁹ = 473610842429 is a prime.

It is a super-2 number, since 2×1023366656317² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023366657317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511683328158 + 511683328159.

It is an arithmetic number, because the mean of its divisors is an integer number (511683328159).

Almost surely, 2^{1023366656317} is an apocalyptic number.

It is an amenable number.

1023366656317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023366656317 is an equidigital number, since it uses as much as digits as its factorization.

1023366656317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2449440, while the sum is 49.

The spelling of 1023366656317 in words is "one trillion, twenty-three billion, three hundred sixty-six million, six hundred fifty-six thousand, three hundred seventeen".