223034243543 has 4 divisors (see below), whose sum is σ = 234772887960. Its totient is φ = 211295599128.

The previous prime is 223034243519. The next prime is 223034243557. The reversal of 223034243543 is 345342430322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345342430322 = 2 ⋅172671215161.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223034243543 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 (223034243743) 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, 5869322180 + ... + 5869322217.

It is an arithmetic number, because the mean of its divisors is an integer number (58693221990).

Almost surely, 2^223034243543 is an apocalyptic number.

223034243543 is a deficient number, since it is larger than the sum of its proper divisors (11738644417).

223034243543 is a wasteful number, since it uses less digits than its factorization.

223034243543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11738644416.

The product of its (nonzero) digits is 207360, while the sum is 35.

Adding to 223034243543 its reverse (345342430322), we get a palindrome (568376673865).

The spelling of 223034243543 in words is "two hundred twenty-three billion, thirty-four million, two hundred forty-three thousand, five hundred forty-three".