201020402444 has 6 divisors (see below), whose sum is σ = 351785704284. Its totient is φ = 100510201220.

The previous prime is 201020402417. The next prime is 201020402497. The reversal of 201020402444 is 444204020102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25127550302 + ... + 25127550309.

It is an arithmetic number, because the mean of its divisors is an integer number (58630950714).

Almost surely, 2^201020402444 is an apocalyptic number.

It is an amenable number.

201020402444 is a deficient number, since it is larger than the sum of its proper divisors (150765301840).

201020402444 is a wasteful number, since it uses less digits than its factorization.

201020402444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50255100615 (or 50255100613 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 23.

Adding to 201020402444 its reverse (444204020102), we get a palindrome (645224422546).

The spelling of 201020402444 in words is "two hundred one billion, twenty million, four hundred two thousand, four hundred forty-four".