320442430133 has 16 divisors (see below), whose sum is σ = 383953668096. Its totient is φ = 261477825840.

The previous prime is 320442430109. The next prime is 320442430183. The reversal of 320442430133 is 331034244023.

It is not a de Polignac number, because 320442430133 - 2⁶ = 320442430069 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 320442430096 and 320442430105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320442430183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4682441 + ... + 4750382.

It is an arithmetic number, because the mean of its divisors is an integer number (23997104256).

Almost surely, 2^320442430133 is an apocalyptic number.

It is an amenable number.

320442430133 is a deficient number, since it is larger than the sum of its proper divisors (63511237963).

320442430133 is a wasteful number, since it uses less digits than its factorization.

320442430133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9433064.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 320442430133 its reverse (331034244023), we get a palindrome (651476674156).

The spelling of 320442430133 in words is "three hundred twenty billion, four hundred forty-two million, four hundred thirty thousand, one hundred thirty-three".