201103231224 has 192 divisors, whose sum is σ = 589176806400. Its totient is φ = 57033849600.

The previous prime is 201103231211. The next prime is 201103231247. The reversal of 201103231224 is 422132301102.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 201103231224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 99113442 + ... + 99115470.

It is an arithmetic number, because the mean of its divisors is an integer number (3068629200).

Almost surely, 2^201103231224 is an apocalyptic number.

201103231224 is a gapful number since it is divisible by the number (24) 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 201103231224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294588403200).

201103231224 is an abundant number, since it is smaller than the sum of its proper divisors (388073575176).

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

201103231224 is a wasteful number, since it uses less digits than its factorization.

201103231224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634 (or 2623 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 201103231224 its reverse (422132301102), we get a palindrome (623235532326).

The spelling of 201103231224 in words is "two hundred one billion, one hundred three million, two hundred thirty-one thousand, two hundred twenty-four".