201324203144 has 8 divisors (see below), whose sum is σ = 377482880910. Its totient is φ = 100662101568.

The previous prime is 201324203131. The next prime is 201324203161. The reversal of 201324203144 is 441302423102.

It can be written as a sum of positive squares in only one way, i.e., 108134430244 + 93189772900 = 328838^2 + 305270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12582762689 + ... + 12582762704.

Almost surely, 2^201324203144 is an apocalyptic number.

It is an amenable number.

201324203144 is a deficient number, since it is larger than the sum of its proper divisors (176158677766).

201324203144 is a wasteful number, since it uses less digits than its factorization.

201324203144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25165525399 (or 25165525395 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 201324203144 its reverse (441302423102), we get a palindrome (642626626246).

The spelling of 201324203144 in words is "two hundred one billion, three hundred twenty-four million, two hundred three thousand, one hundred forty-four".