111123221003 has 16 divisors (see below), whose sum is σ = 122446054080. Its totient is φ = 100375382016.

The previous prime is 111123220981. The next prime is 111123221009. The reversal of 111123221003 is 300122321111.

It is a cyclic number.

It is not a de Polignac number, because 111123221003 - 2¹² = 111123216907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111123221009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 592526 + ... + 757187.

It is an arithmetic number, because the mean of its divisors is an integer number (7652878380).

Almost surely, 2^111123221003 is an apocalyptic number.

111123221003 is a deficient number, since it is larger than the sum of its proper divisors (11322833077).

111123221003 is a wasteful number, since it uses less digits than its factorization.

111123221003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349926.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 111123221003 its reverse (300122321111), we get a palindrome (411245542114).

The spelling of 111123221003 in words is "one hundred eleven billion, one hundred twenty-three million, two hundred twenty-one thousand, three".