201111202320 has 160 divisors (see below), whose sum is σ = 712899823872. Its totient is φ = 45943013376.

The previous prime is 201111202301. The next prime is 201111202351. The reversal of 201111202320 is 23202111102.

201111202320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 201111202320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3114684 + ... + 3178596.

Almost surely, 2^201111202320 is an apocalyptic number.

201111202320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201111202320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356449911936).

201111202320 is an abundant number, since it is smaller than the sum of its proper divisors (511788621552).

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

201111202320 is a wasteful number, since it uses less digits than its factorization.

201111202320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65809 (or 65803 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 201111202320 its reverse (23202111102), we get a palindrome (224313313422).

The spelling of 201111202320 in words is "two hundred one billion, one hundred eleven million, two hundred two thousand, three hundred twenty".