320120420423 has 16 divisors (see below), whose sum is σ = 333097596000. Its totient is φ = 307273408512.

The previous prime is 320120420407. The next prime is 320120420429. The reversal of 320120420423 is 324024021023.

It is a cyclic number.

It is not a de Polignac number, because 320120420423 - 2⁴ = 320120420407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320120420429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30398423 + ... + 30408951.

It is an arithmetic number, because the mean of its divisors is an integer number (20818599750).

Almost surely, 2^320120420423 is an apocalyptic number.

320120420423 is a deficient number, since it is larger than the sum of its proper divisors (12977175577).

320120420423 is a wasteful number, since it uses less digits than its factorization.

320120420423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16594.

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

Adding to 320120420423 its reverse (324024021023), we get a palindrome (644144441446).

The spelling of 320120420423 in words is "three hundred twenty billion, one hundred twenty million, four hundred twenty thousand, four hundred twenty-three".