201343240044 has 36 divisors (see below), whose sum is σ = 514669526280. Its totient is φ = 66360317760.

The previous prime is 201343240031. The next prime is 201343240079. The reversal of 201343240044 is 440042343102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×201343240044² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31417402 + ... + 31423809.

It is an arithmetic number, because the mean of its divisors is an integer number (14296375730).

Almost surely, 2^201343240044 is an apocalyptic number.

It is an amenable number.

201343240044 is an abundant number, since it is smaller than the sum of its proper divisors (313326286236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201343240044 is a wasteful number, since it uses less digits than its factorization.

201343240044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62841310 (or 62841305 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 201343240044 its reverse (440042343102), we get a palindrome (641385583146).

The spelling of 201343240044 in words is "two hundred one billion, three hundred forty-three million, two hundred forty thousand, forty-four".