201031144 has 16 divisors (see below), whose sum is σ = 377126820. Its totient is φ = 100464000.

The previous prime is 201031111. The next prime is 201031147. The reversal of 201031144 is 441130102.

It can be written as a sum of positive squares in 2 ways, for example, as 166668100 + 34363044 = 12910^2 + 5862^2 .

It is not an unprimeable number, because it can be changed into a prime (201031147) 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, 13894 + ... + 24394.

Almost surely, 2^201031144 is an apocalyptic number.

It is an amenable number.

201031144 is a deficient number, since it is larger than the sum of its proper divisors (176095676).

201031144 is a wasteful number, since it uses less digits than its factorization.

201031144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12900 (or 12896 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 201031144 is about 14178.5452004076. The cubic root of 201031144 is about 585.8068531411.

Adding to 201031144 its reverse (441130102), we get a palindrome (642161246).

The spelling of 201031144 in words is "two hundred one million, thirty-one thousand, one hundred forty-four".