1123121303203 has 32 divisors (see below), whose sum is σ = 1220161536000. Its totient is φ = 1030582051200.

The previous prime is 1123121303149. The next prime is 1123121303219. The reversal of 1123121303203 is 3023031213211.

It is a cyclic number.

It is not a de Polignac number, because 1123121303203 - 2⁹ = 1123121302691 is a prime.

It is a super-2 number, since 2×1123121303203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123121303233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16490526 + ... + 16558492.

It is an arithmetic number, because the mean of its divisors is an integer number (38130048000).

Almost surely, 2^{1123121303203} is an apocalyptic number.

1123121303203 is a deficient number, since it is larger than the sum of its proper divisors (97040232797).

1123121303203 is a wasteful number, since it uses less digits than its factorization.

1123121303203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68275.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1123121303203 its reverse (3023031213211), we get a palindrome (4146152516414).

The spelling of 1123121303203 in words is "one trillion, one hundred twenty-three billion, one hundred twenty-one million, three hundred three thousand, two hundred three".