321948071 has 2 divisors, whose sum is σ = 321948072. Its totient is φ = 321948070.

The previous prime is 321948061. The next prime is 321948079. The reversal of 321948071 is 170849123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321948071 - 2¹⁸ = 321685927 is a prime.

It is equal to p_17374553 and since 321948071 and 17374553 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321948079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160974035 + 160974036.

It is an arithmetic number, because the mean of its divisors is an integer number (160974036).

Almost surely, 2^321948071 is an apocalyptic number.

321948071 is a deficient number, since it is larger than the sum of its proper divisors (1).

321948071 is an equidigital number, since it uses as much as digits as its factorization.

321948071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 321948071 is about 17942.9114415693. The cubic root of 321948071 is about 685.3755526739.

The spelling of 321948071 in words is "three hundred twenty-one million, nine hundred forty-eight thousand, seventy-one".