111320203323 has 16 divisors (see below), whose sum is σ = 169635447296. Its totient is φ = 63609796800.

The previous prime is 111320203307. The next prime is 111320203333. The reversal of 111320203323 is 323302023111.

It is not a de Polignac number, because 111320203323 - 2⁴ = 111320203307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 111320203323.

It is not an unprimeable number, because it can be changed into a prime (111320203303) 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 15 ways as a sum of consecutive naturals, for example, 1452615 + ... + 1527327.

It is an arithmetic number, because the mean of its divisors is an integer number (10602215456).

Almost surely, 2^111320203323 is an apocalyptic number.

111320203323 is a deficient number, since it is larger than the sum of its proper divisors (58315243973).

111320203323 is an equidigital number, since it uses as much as digits as its factorization.

111320203323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145674.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 111320203323 its reverse (323302023111), we get a palindrome (434622226434).

The spelling of 111320203323 in words is "one hundred eleven billion, three hundred twenty million, two hundred three thousand, three hundred twenty-three".