201011144 has 16 divisors (see below), whose sum is σ = 378260700. Its totient is φ = 100141632.

The previous prime is 201011137. The next prime is 201011159. The reversal of 201011144 is 441110102.

It can be written as a sum of positive squares in 2 ways, for example, as 200562244 + 448900 = 14162^2 + 670^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43139 + ... + 47570.

Almost surely, 2^201011144 is an apocalyptic number.

It is an amenable number.

201011144 is a deficient number, since it is larger than the sum of its proper divisors (177249556).

201011144 is a wasteful number, since it uses less digits than its factorization.

201011144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90992 (or 90988 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 201011144 is about 14177.8398918876. The cubic root of 201011144 is about 585.7874257606.

Adding to 201011144 its reverse (441110102), we get a palindrome (642121246).

The spelling of 201011144 in words is "two hundred one million, eleven thousand, one hundred forty-four".