201020201303111 has 4 divisors (see below), whose sum is σ = 207504723925824. Its totient is φ = 194535678680400.

The previous prime is 201020201303039. The next prime is 201020201303171. The reversal of 201020201303111 is 111303102020102.

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 201020201303111 - 2²² = 201020197108807 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 201020201303111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201020201303171) 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, 3242261311310 + ... + 3242261311371.

It is an arithmetic number, because the mean of its divisors is an integer number (51876180981456).

Almost surely, 2^{201020201303111} is an apocalyptic number.

201020201303111 is a deficient number, since it is larger than the sum of its proper divisors (6484522622713).

201020201303111 is an equidigital number, since it uses as much as digits as its factorization.

201020201303111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6484522622712.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 201020201303111 its reverse (111303102020102), we get a palindrome (312323303323213).

The spelling of 201020201303111 in words is "two hundred one trillion, twenty billion, two hundred one million, three hundred three thousand, one hundred eleven".