1220103203303 has 16 divisors (see below), whose sum is σ = 1291588959936. Its totient is φ = 1150178641920.

The previous prime is 1220103203243. The next prime is 1220103203357. The reversal of 1220103203303 is 3033023010221.

It is not a de Polignac number, because 1220103203303 - 2²⁶ = 1220036094439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220103203393) 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, 1897523 + ... + 2457803.

It is an arithmetic number, because the mean of its divisors is an integer number (80724309996).

Almost surely, 2^{1220103203303} is an apocalyptic number.

1220103203303 is a deficient number, since it is larger than the sum of its proper divisors (71485756633).

1220103203303 is a wasteful number, since it uses less digits than its factorization.

1220103203303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561674.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 1220103203303 its reverse (3033023010221), we get a palindrome (4253126213524).

The spelling of 1220103203303 in words is "one trillion, two hundred twenty billion, one hundred three million, two hundred three thousand, three hundred three".