223020243311311 has 4 divisors (see below), whose sum is σ = 223523675012232. Its totient is φ = 222516811610392.

The previous prime is 223020243311279. The next prime is 223020243311317. The reversal of 223020243311311 is 113113342020322.

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 223020243311311 - 2⁵ = 223020243311279 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 223020243311311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223020243311317) 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, 251715849796 + ... + 251715850681.

It is an arithmetic number, because the mean of its divisors is an integer number (55880918753058).

Almost surely, 2^{223020243311311} is an apocalyptic number.

223020243311311 is a deficient number, since it is larger than the sum of its proper divisors (503431700921).

223020243311311 is an equidigital number, since it uses as much as digits as its factorization.

223020243311311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503431700920.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 223020243311311 its reverse (113113342020322), we get a palindrome (336133585331633).

The spelling of 223020243311311 in words is "two hundred twenty-three trillion, twenty billion, two hundred forty-three million, three hundred eleven thousand, three hundred eleven".