201103120320 has 56 divisors (see below), whose sum is σ = 638502410064. Its totient is φ = 53627498496.

The previous prime is 201103120319. The next prime is 201103120331. The reversal of 201103120320 is 23021301102.

201103120320 is digitally balanced in base 2, 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 201103120320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104740249 + ... + 104742168.

Almost surely, 2^201103120320 is an apocalyptic number.

201103120320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201103120320 is an abundant number, since it is smaller than the sum of its proper divisors (437399289744).

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

201103120320 is a wasteful number, since it uses less digits than its factorization.

201103120320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209482437 (or 209482427 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 201103120320 its reverse (23021301102), we get a palindrome (224124421422).

The spelling of 201103120320 in words is "two hundred one billion, one hundred three million, one hundred twenty thousand, three hundred twenty".