111223354321 has 4 divisors (see below), whose sum is σ = 111905706352. Its totient is φ = 110541002292.

The previous prime is 111223354313. The next prime is 111223354387. The reversal of 111223354321 is 123453322111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111223354321 - 2³ = 111223354313 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 111223354321.

It is not an unprimeable number, because it can be changed into a prime (111223358321) 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, 341175771 + ... + 341176096.

It is an arithmetic number, because the mean of its divisors is an integer number (27976426588).

Almost surely, 2^111223354321 is an apocalyptic number.

It is an amenable number.

111223354321 is a deficient number, since it is larger than the sum of its proper divisors (682352031).

111223354321 is an equidigital number, since it uses as much as digits as its factorization.

111223354321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682352030.

The product of its digits is 4320, while the sum is 28.

Adding to 111223354321 its reverse (123453322111), we get a palindrome (234676676432).

The spelling of 111223354321 in words is "one hundred eleven billion, two hundred twenty-three million, three hundred fifty-four thousand, three hundred twenty-one".