201331000244 has 36 divisors (see below), whose sum is σ = 388165788612. Its totient is φ = 91302647040.

The previous prime is 201331000243. The next prime is 201331000259. The reversal of 201331000244 is 442000133102.

It can be written as a sum of positive squares in 2 ways, for example, as 37022377744 + 164308622500 = 192412^2 + 405350^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201331000243) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 270767 + ... + 689910.

It is an arithmetic number, because the mean of its divisors is an integer number (10782383017).

Almost surely, 2^201331000244 is an apocalyptic number.

It is an amenable number.

201331000244 is a deficient number, since it is larger than the sum of its proper divisors (186834788368).

201331000244 is a wasteful number, since it uses less digits than its factorization.

201331000244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961136 (or 961123 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 201331000244 its reverse (442000133102), we get a palindrome (643331133346).

The spelling of 201331000244 in words is "two hundred one billion, three hundred thirty-one million, two hundred forty-four", and thus it is an aban number.