201044443001 has 12 divisors (see below), whose sum is σ = 205133220396. Its totient is φ = 197033728320.

The previous prime is 201044442857. The next prime is 201044443049. The reversal of 201044443001 is 100344440102.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 142354535401 + 58689907600 = 377299^2 + 242260^2 .

It is a de Polignac number, because none of the positive numbers 2^k-201044443001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201044443081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 933191 + ... + 1128243.

It is an arithmetic number, because the mean of its divisors is an integer number (17094435033).

Almost surely, 2^201044443001 is an apocalyptic number.

It is an amenable number.

201044443001 is a deficient number, since it is larger than the sum of its proper divisors (4088777395).

201044443001 is an equidigital number, since it uses as much as digits as its factorization.

201044443001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195452 (or 195391 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 201044443001 its reverse (100344440102), we get a palindrome (301388883103).

The spelling of 201044443001 in words is "two hundred one billion, forty-four million, four hundred forty-three thousand, one".