321120473 has 2 divisors, whose sum is σ = 321120474. Its totient is φ = 321120472.

The previous prime is 321120467. The next prime is 321120491. The reversal of 321120473 is 374021123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 249260944 + 71859529 = 15788^2 + 8477^2 .

It is a cyclic number.

It is not a de Polignac number, because 321120473 - 2²⁴ = 304343257 is a prime.

It is not a weakly prime, because it can be changed into another prime (321120493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160560236 + 160560237.

It is an arithmetic number, because the mean of its divisors is an integer number (160560237).

Almost surely, 2^321120473 is an apocalyptic number.

It is an amenable number.

321120473 is a deficient number, since it is larger than the sum of its proper divisors (1).

321120473 is an equidigital number, since it uses as much as digits as its factorization.

321120473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 321120473 is about 17919.8346253530. The cubic root of 321120473 is about 684.7877744885.

Adding to 321120473 its reverse (374021123), we get a palindrome (695141596).

The spelling of 321120473 in words is "three hundred twenty-one million, one hundred twenty thousand, four hundred seventy-three".