320401043 has 2 divisors, whose sum is σ = 320401044. Its totient is φ = 320401042.

The previous prime is 320401033. The next prime is 320401051. The reversal of 320401043 is 340104023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320401043 - 2¹⁰ = 320400019 is a prime.

It is not a weakly prime, because it can be changed into another prime (320401013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160200521 + 160200522.

It is an arithmetic number, because the mean of its divisors is an integer number (160200522).

Almost surely, 2^320401043 is an apocalyptic number.

320401043 is a deficient number, since it is larger than the sum of its proper divisors (1).

320401043 is an equidigital number, since it uses as much as digits as its factorization.

320401043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 320401043 is about 17899.7498027207. The cubic root of 320401043 is about 684.2759985035.

Adding to 320401043 its reverse (340104023), we get a palindrome (660505066).

The spelling of 320401043 in words is "three hundred twenty million, four hundred one thousand, forty-three".