201143621003 has 4 divisors (see below), whose sum is σ = 216616207248. Its totient is φ = 185671034760.

The previous prime is 201143620987. The next prime is 201143621009. The reversal of 201143621003 is 300126341102.

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

It is a cyclic number.

It is not a de Polignac number, because 201143621003 - 2⁴ = 201143620987 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 201143621003.

It is not an unprimeable number, because it can be changed into a prime (201143621009) 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, 7736293103 + ... + 7736293128.

It is an arithmetic number, because the mean of its divisors is an integer number (54154051812).

Almost surely, 2^201143621003 is an apocalyptic number.

201143621003 is a deficient number, since it is larger than the sum of its proper divisors (15472586245).

201143621003 is a wasteful number, since it uses less digits than its factorization.

201143621003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15472586244.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 201143621003 its reverse (300126341102), we get a palindrome (501269962105).

The spelling of 201143621003 in words is "two hundred one billion, one hundred forty-three million, six hundred twenty-one thousand, three".