2020201311311 has 4 divisors (see below), whose sum is σ = 2020205437800. Its totient is φ = 2020197184824.

The previous prime is 2020201311277. The next prime is 2020201311313. The reversal of 2020201311311 is 1131131020202.

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 2020201311311 - 2³⁸ = 1745323404367 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 2020201311311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020201311313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1211756 + ... + 2347073.

It is an arithmetic number, because the mean of its divisors is an integer number (505051359450).

Almost surely, 2^{2020201311311} is an apocalyptic number.

2020201311311 is a deficient number, since it is larger than the sum of its proper divisors (4126489).

2020201311311 is an equidigital number, since it uses as much as digits as its factorization.

2020201311311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4126488.

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

Adding to 2020201311311 its reverse (1131131020202), we get a palindrome (3151332331513).

The spelling of 2020201311311 in words is "two trillion, twenty billion, two hundred one million, three hundred eleven thousand, three hundred eleven".