111223320203 has 4 divisors (see below), whose sum is σ = 112473020520. Its totient is φ = 109973619888.

The previous prime is 111223320161. The next prime is 111223320217. The reversal of 111223320203 is 302023322111.

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 111223320203 - 2⁸ = 111223319947 is a prime.

It is a super-2 number, since 2×111223320203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111223520203) 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, 624850025 + ... + 624850202.

It is an arithmetic number, because the mean of its divisors is an integer number (28118255130).

Almost surely, 2^111223320203 is an apocalyptic number.

111223320203 is a deficient number, since it is larger than the sum of its proper divisors (1249700317).

111223320203 is an equidigital number, since it uses as much as digits as its factorization.

111223320203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1249700316.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 111223320203 its reverse (302023322111), we get a palindrome (413246642314).

The spelling of 111223320203 in words is "one hundred eleven billion, two hundred twenty-three million, three hundred twenty thousand, two hundred three".