322023421 has 2 divisors, whose sum is σ = 322023422. Its totient is φ = 322023420.

The previous prime is 322023407. The next prime is 322023473. The reversal of 322023421 is 124320223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286083396 + 35940025 = 16914^2 + 5995^2 .

It is a cyclic number.

It is not a de Polignac number, because 322023421 - 2¹⁷ = 321892349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (322023491) 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, 161011710 + 161011711.

It is an arithmetic number, because the mean of its divisors is an integer number (161011711).

Almost surely, 2^322023421 is an apocalyptic number.

It is an amenable number.

322023421 is a deficient number, since it is larger than the sum of its proper divisors (1).

322023421 is an equidigital number, since it uses as much as digits as its factorization.

322023421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 322023421 is about 17945.0110337107. The cubic root of 322023421 is about 685.4290178382.

Adding to 322023421 its reverse (124320223), we get a palindrome (446343644).

The spelling of 322023421 in words is "three hundred twenty-two million, twenty-three thousand, four hundred twenty-one".