1220344103 has 32 divisors (see below), whose sum is σ = 1434101760. Its totient is φ = 1026764640.

The previous prime is 1220344093. The next prime is 1220344117. The reversal of 1220344103 is 3014430221.

It is not a de Polignac number, because 1220344103 - 2²² = 1216149799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220344183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1786400 + ... + 1787082.

It is an arithmetic number, because the mean of its divisors is an integer number (44815680).

Almost surely, 2^1220344103 is an apocalyptic number.

1220344103 is a deficient number, since it is larger than the sum of its proper divisors (213757657).

1220344103 is a wasteful number, since it uses less digits than its factorization.

1220344103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1220344103 is about 34933.4238659768. The cubic root of 1220344103 is about 1068.6301808927.

Adding to 1220344103 its reverse (3014430221), we get a palindrome (4234774324).

The spelling of 1220344103 in words is "one billion, two hundred twenty million, three hundred forty-four thousand, one hundred three".