12111123003 has 16 divisors (see below), whose sum is σ = 18466753536. Its totient is φ = 6916250880.

The previous prime is 12111122993. The next prime is 12111123053. The reversal of 12111123003 is 30032111121.

It is a happy number.

It is not a de Polignac number, because 12111123003 - 2¹⁷ = 12110991931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12111123053) 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, 148918 + ... + 215403.

It is an arithmetic number, because the mean of its divisors is an integer number (1154172096).

Almost surely, 2^12111123003 is an apocalyptic number.

12111123003 is a deficient number, since it is larger than the sum of its proper divisors (6355630533).

12111123003 is a wasteful number, since it uses less digits than its factorization.

12111123003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365914.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12111123003 its reverse (30032111121), we get a palindrome (42143234124).

The spelling of 12111123003 in words is "twelve billion, one hundred eleven million, one hundred twenty-three thousand, three".