320215313101 has 4 divisors (see below), whose sum is σ = 320256622972. Its totient is φ = 320174003232.

The previous prime is 320215313087. The next prime is 320215313111. The reversal of 320215313101 is 101313512023.

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 310878729225 + 9336583876 = 557565^2 + 96626^2 .

It is a cyclic number.

It is not a de Polignac number, because 320215313101 - 2⁷ = 320215312973 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 (320215313111) 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, 20643306 + ... + 20658811.

It is an arithmetic number, because the mean of its divisors is an integer number (80064155743).

Almost surely, 2^320215313101 is an apocalyptic number.

It is an amenable number.

320215313101 is a deficient number, since it is larger than the sum of its proper divisors (41309871).

320215313101 is an equidigital number, since it uses as much as digits as its factorization.

320215313101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41309870.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 320215313101 its reverse (101313512023), we get a palindrome (421528825124).

The spelling of 320215313101 in words is "three hundred twenty billion, two hundred fifteen million, three hundred thirteen thousand, one hundred one".