111223020133 has 4 divisors (see below), whose sum is σ = 111223706220. Its totient is φ = 111222334048.

The previous prime is 111223020131. The next prime is 111223020157. The reversal of 111223020133 is 331020322111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 68082899329 + 43140120804 = 260927^2 + 207702^2 .

It is a cyclic number.

It is not a de Polignac number, because 111223020133 - 2¹ = 111223020131 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 111223020133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111223020131) 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, 51003 + ... + 474391.

It is an arithmetic number, because the mean of its divisors is an integer number (27805926555).

Almost surely, 2^111223020133 is an apocalyptic number.

It is an amenable number.

111223020133 is a deficient number, since it is larger than the sum of its proper divisors (686087).

111223020133 is an equidigital number, since it uses as much as digits as its factorization.

111223020133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686086.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 111223020133 its reverse (331020322111), we get a palindrome (442243342244).

The spelling of 111223020133 in words is "one hundred eleven billion, two hundred twenty-three million, twenty thousand, one hundred thirty-three".