320212054501 has 4 divisors (see below), whose sum is σ = 320635056652. Its totient is φ = 319789052352.

The previous prime is 320212054483. The next prime is 320212054511. The reversal of 320212054501 is 105450212023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 170299830276 + 149912224225 = 412674^2 + 387185^2 .

It is a cyclic number.

It is not a de Polignac number, because 320212054501 - 2¹¹ = 320212052453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320212054511) 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, 211499940 + ... + 211501453.

It is an arithmetic number, because the mean of its divisors is an integer number (80158764163).

Almost surely, 2^320212054501 is an apocalyptic number.

It is an amenable number.

320212054501 is a deficient number, since it is larger than the sum of its proper divisors (423002151).

320212054501 is an equidigital number, since it uses as much as digits as its factorization.

320212054501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423002150.

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 320212054501 its reverse (105450212023), we get a palindrome (425662266524).

The spelling of 320212054501 in words is "three hundred twenty billion, two hundred twelve million, fifty-four thousand, five hundred one".