321321318463 has 2 divisors, whose sum is σ = 321321318464. Its totient is φ = 321321318462.

The previous prime is 321321318431. The next prime is 321321318491. The reversal of 321321318463 is 364813123123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321321318463 - 2⁵ = 321321318431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321321318413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160660659231 + 160660659232.

It is an arithmetic number, because the mean of its divisors is an integer number (160660659232).

Almost surely, 2^321321318463 is an apocalyptic number.

321321318463 is a deficient number, since it is larger than the sum of its proper divisors (1).

321321318463 is an equidigital number, since it uses as much as digits as its factorization.

321321318463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 37.

The spelling of 321321318463 in words is "three hundred twenty-one billion, three hundred twenty-one million, three hundred eighteen thousand, four hundred sixty-three".