211113121223 has 8 divisors (see below), whose sum is σ = 215772073776. Its totient is φ = 206504536000.

The previous prime is 211113121201. The next prime is 211113121243. The reversal of 211113121223 is 322121311112.

211113121223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211113121223 - 2³⁰ = 210039379399 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211113121195 and 211113121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211113121243) 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 7 ways as a sum of consecutive naturals, for example, 12583358 + ... + 12600123.

It is an arithmetic number, because the mean of its divisors is an integer number (26971509222).

Almost surely, 2^211113121223 is an apocalyptic number.

211113121223 is a deficient number, since it is larger than the sum of its proper divisors (4658952553).

211113121223 is a wasteful number, since it uses less digits than its factorization.

211113121223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25183665.

The product of its digits is 144, while the sum is 20.

Adding to 211113121223 its reverse (322121311112), we get a palindrome (533234432335).

The spelling of 211113121223 in words is "two hundred eleven billion, one hundred thirteen million, one hundred twenty-one thousand, two hundred twenty-three".