321361163 has 2 divisors, whose sum is σ = 321361164. Its totient is φ = 321361162.

The previous prime is 321361121. The next prime is 321361199. The reversal of 321361163 is 361163123.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321361163 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (321364163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160680581 + 160680582.

It is an arithmetic number, because the mean of its divisors is an integer number (160680582).

Almost surely, 2^321361163 is an apocalyptic number.

321361163 is a deficient number, since it is larger than the sum of its proper divisors (1).

321361163 is an equidigital number, since it uses as much as digits as its factorization.

321361163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 26.

The square root of 321361163 is about 17926.5491101885. The cubic root of 321361163 is about 684.9588218271.

The spelling of 321361163 in words is "three hundred twenty-one million, three hundred sixty-one thousand, one hundred sixty-three".