111220103 has 8 divisors (see below), whose sum is σ = 118978272. Its totient is φ = 103597056.

The previous prime is 111220097. The next prime is 111220117. The reversal of 111220103 is 301022111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111220103 - 2²² = 107025799 is a prime.

It is a super-2 number, since 2×111220103² = 24739822622661218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32075 + ... + 35372.

It is an arithmetic number, because the mean of its divisors is an integer number (14872284).

Almost surely, 2^111220103 is an apocalyptic number.

111220103 is a deficient number, since it is larger than the sum of its proper divisors (7758169).

111220103 is an equidigital number, since it uses as much as digits as its factorization.

111220103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67561.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 111220103 is about 10546.0942059134. The cubic root of 111220103 is about 480.9069989036.

Adding to 111220103 its reverse (301022111), we get a palindrome (412242214).

The spelling of 111220103 in words is "one hundred eleven million, two hundred twenty thousand, one hundred three".