320024400023 has 4 divisors (see below), whose sum is σ = 320440557360. Its totient is φ = 319608242688.

The previous prime is 320024399999. The next prime is 320024400041. The reversal of 320024400023 is 320004420023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320004420023 = 433 ⋅739040231.

It is a cyclic number.

It is not a de Polignac number, because 320024400023 - 2¹⁴ = 320024383639 is a prime.

It is a super-2 number, since 2×320024400023² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320024399968 and 320024400004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320024400623) 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 in 3 ways as a sum of consecutive naturals, for example, 208077515 + ... + 208079052.

It is an arithmetic number, because the mean of its divisors is an integer number (80110139340).

Almost surely, 2^320024400023 is an apocalyptic number.

320024400023 is a deficient number, since it is larger than the sum of its proper divisors (416157337).

320024400023 is an equidigital number, since it uses as much as digits as its factorization.

320024400023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416157336.

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 320024400023 its reverse (320004420023), we get a palindrome (640028820046).

The spelling of 320024400023 in words is "three hundred twenty billion, twenty-four million, four hundred thousand, twenty-three".