201012440144 has 20 divisors (see below), whose sum is σ = 395846221140. Its totient is φ = 98858576640.

The previous prime is 201012440141. The next prime is 201012440273. The reversal of 201012440144 is 441044210102.

It can be written as a sum of positive squares in 2 ways, for example, as 52084368400 + 148928071744 = 228220^2 + 385912^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012440141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102976709 + ... + 102978660.

It is an arithmetic number, because the mean of its divisors is an integer number (19792311057).

Almost surely, 2^201012440144 is an apocalyptic number.

It is an amenable number.

201012440144 is a deficient number, since it is larger than the sum of its proper divisors (194833780996).

201012440144 is a wasteful number, since it uses less digits than its factorization.

201012440144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205955438 (or 205955432 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 201012440144 its reverse (441044210102), we get a palindrome (642056650246).

The spelling of 201012440144 in words is "two hundred one billion, twelve million, four hundred forty thousand, one hundred forty-four".