201444131243 has 16 divisors (see below), whose sum is σ = 224544564000. Its totient is φ = 179595988992.

The previous prime is 201444131171. The next prime is 201444131269. The reversal of 201444131243 is 342131444102.

It is a cyclic number.

It is not a de Polignac number, because 201444131243 - 2¹² = 201444127147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201444131143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3436403 + ... + 3494531.

It is an arithmetic number, because the mean of its divisors is an integer number (14034035250).

Almost surely, 2^201444131243 is an apocalyptic number.

201444131243 is a deficient number, since it is larger than the sum of its proper divisors (23100432757).

201444131243 is a wasteful number, since it uses less digits than its factorization.

201444131243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68894.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 201444131243 its reverse (342131444102), we get a palindrome (543575575345).

It can be divided in two parts, 201 and 444131243, that added together give a palindrome (444131444).

The spelling of 201444131243 in words is "two hundred one billion, four hundred forty-four million, one hundred thirty-one thousand, two hundred forty-three".