201044443213 has 4 divisors (see below), whose sum is σ = 201046360828. Its totient is φ = 201042525600.

The previous prime is 201044443211. The next prime is 201044443217. The reversal of 201044443213 is 312344440102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 177643704484 + 23400738729 = 421478^2 + 152973^2 .

It is a cyclic number.

It is not a de Polignac number, because 201044443213 - 2¹ = 201044443211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201044443211) 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, 791856 + ... + 1014457.

It is an arithmetic number, because the mean of its divisors is an integer number (50261590207).

Almost surely, 2^201044443213 is an apocalyptic number.

It is an amenable number.

201044443213 is a deficient number, since it is larger than the sum of its proper divisors (1917615).

201044443213 is a wasteful number, since it uses less digits than its factorization.

201044443213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917614.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 201044443213 its reverse (312344440102), we get a palindrome (513388883315).

The spelling of 201044443213 in words is "two hundred one billion, forty-four million, four hundred forty-three thousand, two hundred thirteen".