320120232001 has 4 divisors (see below), whose sum is σ = 320121714004. Its totient is φ = 320118750000.

The previous prime is 320120231929. The next prime is 320120232023. The reversal of 320120232001 is 100232021023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100232021023 = 29 ⋅3456276587.

It can be written as a sum of positive squares in 2 ways, for example, as 170292402225 + 149827829776 = 412665^2 + 387076^2 .

It is a cyclic number.

It is not a de Polignac number, because 320120232001 - 2¹¹ = 320120229953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320120232041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347250 + ... + 872251.

It is an arithmetic number, because the mean of its divisors is an integer number (80030428501).

Almost surely, 2^320120232001 is an apocalyptic number.

It is an amenable number.

320120232001 is a deficient number, since it is larger than the sum of its proper divisors (1482003).

320120232001 is a wasteful number, since it uses less digits than its factorization.

320120232001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482002.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 320120232001 its reverse (100232021023), we get a palindrome (420352253024).

The spelling of 320120232001 in words is "three hundred twenty billion, one hundred twenty million, two hundred thirty-two thousand, one".