223112340543 has 4 divisors (see below), whose sum is σ = 297483120728. Its totient is φ = 148741560360.

The previous prime is 223112340499. The next prime is 223112340547. The reversal of 223112340543 is 345043211322.

223112340543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 223112340543 - 2²⁰ = 223111291967 is a prime.

It is a super-3 number, since 3×223112340543³ (a number of 35 digits) contains 333 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 223112340543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223112340547) 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, 37185390088 + ... + 37185390093.

It is an arithmetic number, because the mean of its divisors is an integer number (74370780182).

Almost surely, 2^223112340543 is an apocalyptic number.

223112340543 is a deficient number, since it is larger than the sum of its proper divisors (74370780185).

223112340543 is an equidigital number, since it uses as much as digits as its factorization.

223112340543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74370780184.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 223112340543 its reverse (345043211322), we get a palindrome (568155551865).

The spelling of 223112340543 in words is "two hundred twenty-three billion, one hundred twelve million, three hundred forty thousand, five hundred forty-three".