320120440043 has 2 divisors, whose sum is σ = 320120440044. Its totient is φ = 320120440042.

The previous prime is 320120440019. The next prime is 320120440061. The reversal of 320120440043 is 340044021023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320120440043 - 2⁶ = 320120439979 is a prime.

It is a super-2 number, since 2×320120440043² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (320120440063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160060220021 + 160060220022.

It is an arithmetic number, because the mean of its divisors is an integer number (160060220022).

Almost surely, 2^320120440043 is an apocalyptic number.

320120440043 is a deficient number, since it is larger than the sum of its proper divisors (1).

320120440043 is an equidigital number, since it uses as much as digits as its factorization.

320120440043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 320120440043 its reverse (340044021023), we get a palindrome (660164461066).

The spelling of 320120440043 in words is "three hundred twenty billion, one hundred twenty million, four hundred forty thousand, forty-three".