1223103123303 has 4 divisors (see below), whose sum is σ = 1630804164408. Its totient is φ = 815402082200.

The previous prime is 1223103123271. The next prime is 1223103123329. The reversal of 1223103123303 is 3033213013221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1223103123303 - 2⁵ = 1223103123271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223103123373) 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, 203850520548 + ... + 203850520553.

It is an arithmetic number, because the mean of its divisors is an integer number (407701041102).

Almost surely, 2^{1223103123303} is an apocalyptic number.

1223103123303 is a deficient number, since it is larger than the sum of its proper divisors (407701041105).

1223103123303 is an equidigital number, since it uses as much as digits as its factorization.

1223103123303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407701041104.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1223103123303 its reverse (3033213013221), we get a palindrome (4256316136524).

The spelling of 1223103123303 in words is "one trillion, two hundred twenty-three billion, one hundred three million, one hundred twenty-three thousand, three hundred three".