320211103120 has 80 divisors (see below), whose sum is σ = 762190716672. Its totient is φ = 125042319360.

The previous prime is 320211103109. The next prime is 320211103123. The reversal of 320211103120 is 21301112023.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×320211103120² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 320211103094 and 320211103103.

It is not an unprimeable number, because it can be changed into a prime (320211103123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7074160 + ... + 7119280.

Almost surely, 2^320211103120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320211103120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381095358336).

320211103120 is an abundant number, since it is smaller than the sum of its proper divisors (441979613552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320211103120 is a wasteful number, since it uses less digits than its factorization.

320211103120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47240 (or 47234 counting only the distinct ones).

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

Adding to 320211103120 its reverse (21301112023), we get a palindrome (341512215143).

The spelling of 320211103120 in words is "three hundred twenty billion, two hundred eleven million, one hundred three thousand, one hundred twenty".