12111231003 has 16 divisors (see below), whose sum is σ = 16883562240. Its totient is φ = 7707908384.

The previous prime is 12111230987. The next prime is 12111231017. The reversal of 12111231003 is 30013211121.

It is a happy number.

12111231003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12111231003 - 2⁴ = 12111230987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12111231403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137301 + ... + 207542.

It is an arithmetic number, because the mean of its divisors is an integer number (1055222640).

Almost surely, 2^12111231003 is an apocalyptic number.

12111231003 is a deficient number, since it is larger than the sum of its proper divisors (4772331237).

12111231003 is a wasteful number, since it uses less digits than its factorization.

12111231003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345378.

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

Adding to 12111231003 its reverse (30013211121), we get a palindrome (42124442124).

The spelling of 12111231003 in words is "twelve billion, one hundred eleven million, two hundred thirty-one thousand, three".