320440203341 has 4 divisors (see below), whose sum is σ = 321299292732. Its totient is φ = 319581113952.

The previous prime is 320440203337. The next prime is 320440203361. The reversal of 320440203341 is 143302044023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 189429505225 + 131010698116 = 435235^2 + 361954^2 .

It is a cyclic number.

It is not a de Polignac number, because 320440203341 - 2² = 320440203337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320440203341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320440203301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429544136 + ... + 429544881.

It is an arithmetic number, because the mean of its divisors is an integer number (80324823183).

Almost surely, 2^320440203341 is an apocalyptic number.

It is an amenable number.

320440203341 is a deficient number, since it is larger than the sum of its proper divisors (859089391).

320440203341 is an equidigital number, since it uses as much as digits as its factorization.

320440203341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859089390.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 320440203341 its reverse (143302044023), we get a palindrome (463742247364).

The spelling of 320440203341 in words is "three hundred twenty billion, four hundred forty million, two hundred three thousand, three hundred forty-one".