1220103223 has 4 divisors (see below), whose sum is σ = 1220175880. Its totient is φ = 1220030568.

The previous prime is 1220103217. The next prime is 1220103233. The reversal of 1220103223 is 3223010221.

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 is a cyclic number.

It is not a de Polignac number, because 1220103223 - 2⁵ = 1220103191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220103197 and 1220103206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220103233) 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, 3193 + ... + 49501.

It is an arithmetic number, because the mean of its divisors is an integer number (305043970).

Almost surely, 2^1220103223 is an apocalyptic number.

1220103223 is a deficient number, since it is larger than the sum of its proper divisors (72657).

1220103223 is an equidigital number, since it uses as much as digits as its factorization.

1220103223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72656.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1220103223 is about 34929.9759948386. The cubic root of 1220103223 is about 1068.5598650488.

Adding to 1220103223 its reverse (3223010221), we get a palindrome (4443113444).

The spelling of 1220103223 in words is "one billion, two hundred twenty million, one hundred three thousand, two hundred twenty-three".