4311111223 has 4 divisors (see below), whose sum is σ = 4311272128. Its totient is φ = 4310950320.

The previous prime is 4311111221. The next prime is 4311111253. The reversal of 4311111223 is 3221111134.

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 4311111223 - 2¹ = 4311111221 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 4311111223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4311111221) 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, 29511 + ... + 97432.

It is an arithmetic number, because the mean of its divisors is an integer number (1077818032).

Almost surely, 2^4311111223 is an apocalyptic number.

4311111223 is a deficient number, since it is larger than the sum of its proper divisors (160905).

4311111223 is a wasteful number, since it uses less digits than its factorization.

4311111223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160904.

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

The square root of 4311111223 is about 65659.0528640187. The cubic root of 4311111223 is about 1627.5327727250.

Adding to 4311111223 its reverse (3221111134), we get a palindrome (7532222357).

The spelling of 4311111223 in words is "four billion, three hundred eleven million, one hundred eleven thousand, two hundred twenty-three".