320123101201 has 4 divisors (see below), whose sum is σ = 320124415012. Its totient is φ = 320121787392.

The previous prime is 320123101141. The next prime is 320123101217. The reversal of 320123101201 is 102101321023.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 308273690176 + 11849411025 = 555224^2 + 108855^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320123101201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320123105201) 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, 172200 + ... + 818473.

It is an arithmetic number, because the mean of its divisors is an integer number (80031103753).

Almost surely, 2^320123101201 is an apocalyptic number.

It is an amenable number.

320123101201 is a deficient number, since it is larger than the sum of its proper divisors (1313811).

320123101201 is an equidigital number, since it uses as much as digits as its factorization.

320123101201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313810.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 320123101201 its reverse (102101321023), we get a palindrome (422224422224).

The spelling of 320123101201 in words is "three hundred twenty billion, one hundred twenty-three million, one hundred one thousand, two hundred one".