321868145363 has 2 divisors, whose sum is σ = 321868145364. Its totient is φ = 321868145362.

The previous prime is 321868145303. The next prime is 321868145413. The reversal of 321868145363 is 363541868123.

It is an a-pointer prime, because the next prime (321868145413) can be obtained adding 321868145363 to its sum of digits (50).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321868145363 - 2²⁰ = 321867096787 is a prime.

It is not a weakly prime, because it can be changed into another prime (321868145303) 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, 160934072681 + 160934072682.

It is an arithmetic number, because the mean of its divisors is an integer number (160934072682).

Almost surely, 2^321868145363 is an apocalyptic number.

321868145363 is a deficient number, since it is larger than the sum of its proper divisors (1).

321868145363 is an equidigital number, since it uses as much as digits as its factorization.

321868145363 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2488320, while the sum is 50.

The spelling of 321868145363 in words is "three hundred twenty-one billion, eight hundred sixty-eight million, one hundred forty-five thousand, three hundred sixty-three".