320361121 has 4 divisors (see below), whose sum is σ = 321220372. Its totient is φ = 319501872.

The previous prime is 320361101. The next prime is 320361149. The reversal of 320361121 is 121163023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121163023 = 157 ⋅771739.

It can be written as a sum of positive squares in 2 ways, for example, as 114725521 + 205635600 = 10711^2 + 14340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320361121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320361101) 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 in 3 ways as a sum of consecutive naturals, for example, 429066 + ... + 429811.

It is an arithmetic number, because the mean of its divisors is an integer number (80305093).

Almost surely, 2^320361121 is an apocalyptic number.

It is an amenable number.

320361121 is a deficient number, since it is larger than the sum of its proper divisors (859251).

320361121 is an equidigital number, since it uses as much as digits as its factorization.

320361121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859250.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 320361121 is about 17898.6346127295. The cubic root of 320361121 is about 684.2475770385.

The spelling of 320361121 in words is "three hundred twenty million, three hundred sixty-one thousand, one hundred twenty-one".