201111213013 has 4 divisors (see below), whose sum is σ = 205390175040. Its totient is φ = 196832250988.

The previous prime is 201111213011. The next prime is 201111213041. The reversal of 201111213013 is 310312111102.

It is a happy number.

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 201111213013 - 2¹ = 201111213011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201111213011) 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, 2139480943 + ... + 2139481036.

It is an arithmetic number, because the mean of its divisors is an integer number (51347543760).

Almost surely, 2^201111213013 is an apocalyptic number.

It is an amenable number.

201111213013 is a deficient number, since it is larger than the sum of its proper divisors (4278962027).

201111213013 is an equidigital number, since it uses as much as digits as its factorization.

201111213013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278962026.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 201111213013 its reverse (310312111102), we get a palindrome (511423324115).

The spelling of 201111213013 in words is "two hundred one billion, one hundred eleven million, two hundred thirteen thousand, thirteen".