201211020202013 has 4 divisors (see below), whose sum is σ = 201211442167008. Its totient is φ = 201210598237020.

The previous prime is 201211020201973. The next prime is 201211020202037. The reversal of 201211020202013 is 310202020112102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201211020202013 - 2¹² = 201211020197917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201211020201982 and 201211020202000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201211020202043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210266423 + ... + 211221188.

It is an arithmetic number, because the mean of its divisors is an integer number (50302860541752).

Almost surely, 2^{201211020202013} is an apocalyptic number.

It is an amenable number.

201211020202013 is a deficient number, since it is larger than the sum of its proper divisors (421964995).

201211020202013 is an equidigital number, since it uses as much as digits as its factorization.

201211020202013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421964994.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 201211020202013 its reverse (310202020112102), we get a palindrome (511413040314115).

The spelling of 201211020202013 in words is "two hundred one trillion, two hundred eleven billion, twenty million, two hundred two thousand, thirteen".