320211331121 has 4 divisors (see below), whose sum is σ = 349321452144. Its totient is φ = 291101210100.

The previous prime is 320211331109. The next prime is 320211331129. The reversal of 320211331121 is 121133112023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320211331121 - 2⁶ = 320211331057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320211331093 and 320211331102.

It is not an unprimeable number, because it can be changed into a prime (320211331129) 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, 14555060495 + ... + 14555060516.

It is an arithmetic number, because the mean of its divisors is an integer number (87330363036).

Almost surely, 2^320211331121 is an apocalyptic number.

It is an amenable number.

320211331121 is a deficient number, since it is larger than the sum of its proper divisors (29110121023).

320211331121 is a wasteful number, since it uses less digits than its factorization.

320211331121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29110121022.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 320211331121 its reverse (121133112023), we get a palindrome (441344443144).

The spelling of 320211331121 in words is "three hundred twenty billion, two hundred eleven million, three hundred thirty-one thousand, one hundred twenty-one".