321422117 has 2 divisors, whose sum is σ = 321422118. Its totient is φ = 321422116.

The previous prime is 321422113. The next prime is 321422137. The reversal of 321422117 is 711224123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189310081 + 132112036 = 13759^2 + 11494^2 .

It is a cyclic number.

It is not a de Polignac number, because 321422117 - 2² = 321422113 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 321422092 and 321422101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321422113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160711058 + 160711059.

It is an arithmetic number, because the mean of its divisors is an integer number (160711059).

Almost surely, 2^321422117 is an apocalyptic number.

It is an amenable number.

321422117 is a deficient number, since it is larger than the sum of its proper divisors (1).

321422117 is an equidigital number, since it uses as much as digits as its factorization.

321422117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 23.

The square root of 321422117 is about 17928.2491336996. The cubic root of 321422117 is about 685.0021254840.

The spelling of 321422117 in words is "three hundred twenty-one million, four hundred twenty-two thousand, one hundred seventeen".