20144001203441 has 4 divisors (see below), whose sum is σ = 20162035225332. Its totient is φ = 20125967181552.

The previous prime is 20144001203429. The next prime is 20144001203461. The reversal of 20144001203441 is 14430210044102.

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 8312265610000 + 11831735593441 = 2883100^2 + 3439729^2 .

It is a cyclic number.

It is not a de Polignac number, because 20144001203441 - 2³⁸ = 19869123296497 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20144001203441.

It is not an unprimeable number, because it can be changed into a prime (20144001203411) 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, 9017009270 + ... + 9017011503.

It is an arithmetic number, because the mean of its divisors is an integer number (5040508806333).

Almost surely, 2^{20144001203441} is an apocalyptic number.

It is an amenable number.

20144001203441 is a deficient number, since it is larger than the sum of its proper divisors (18034021891).

20144001203441 is a wasteful number, since it uses less digits than its factorization.

20144001203441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18034021890.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 20144001203441 its reverse (14430210044102), we get a palindrome (34574211247543).

The spelling of 20144001203441 in words is "twenty trillion, one hundred forty-four billion, one million, two hundred three thousand, four hundred forty-one".