201112212311 has 4 divisors (see below), whose sum is σ = 201162633000. Its totient is φ = 201061791624.

The previous prime is 201112212277. The next prime is 201112212347. The reversal of 201112212311 is 113212211102.

It is a happy number.

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 201112212311 - 2⁶ = 201112212247 is a prime.

It is a super-2 number, since 2×201112212311² (a number of 23 digits) contains 22 as substring.

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 201112212311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201112212811) 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, 25204361 + ... + 25212338.

It is an arithmetic number, because the mean of its divisors is an integer number (50290658250).

Almost surely, 2^201112212311 is an apocalyptic number.

201112212311 is a deficient number, since it is larger than the sum of its proper divisors (50420689).

201112212311 is an equidigital number, since it uses as much as digits as its factorization.

201112212311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50420688.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 201112212311 its reverse (113212211102), we get a palindrome (314324423413).

The spelling of 201112212311 in words is "two hundred one billion, one hundred twelve million, two hundred twelve thousand, three hundred eleven".