223012321111 has 4 divisors (see below), whose sum is σ = 223097540512. Its totient is φ = 222927101712.

The previous prime is 223012321099. The next prime is 223012321117. The reversal of 223012321111 is 111123210322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111123210322 = 2 ⋅55561605161.

It is a cyclic number.

It is not a de Polignac number, because 223012321111 - 2⁹ = 223012320599 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 (223012321117) 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, 42605775 + ... + 42611008.

It is an arithmetic number, because the mean of its divisors is an integer number (55774385128).

Almost surely, 2^223012321111 is an apocalyptic number.

223012321111 is a deficient number, since it is larger than the sum of its proper divisors (85219401).

223012321111 is an equidigital number, since it uses as much as digits as its factorization.

223012321111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85219400.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 223012321111 its reverse (111123210322), we get a palindrome (334135531433).

The spelling of 223012321111 in words is "two hundred twenty-three billion, twelve million, three hundred twenty-one thousand, one hundred eleven".