1123003120003 has 4 divisors (see below), whose sum is σ = 1189062127080. Its totient is φ = 1056944112928.

The previous prime is 1123003119991. The next prime is 1123003120061. The reversal of 1123003120003 is 3000213003211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123003120003 is a prime.

It is a super-2 number, since 2×1123003120003² (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 (1123003120093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33029503513 + ... + 33029503546.

It is an arithmetic number, because the mean of its divisors is an integer number (297265531770).

Almost surely, 2^{1123003120003} is an apocalyptic number.

1123003120003 is a deficient number, since it is larger than the sum of its proper divisors (66059007077).

1123003120003 is an equidigital number, since it uses as much as digits as its factorization.

1123003120003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66059007076.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 1123003120003 its reverse (3000213003211), we get a palindrome (4123216123214).

The spelling of 1123003120003 in words is "one trillion, one hundred twenty-three billion, three million, one hundred twenty thousand, three".