12123111003 has 8 divisors (see below), whose sum is σ = 16212983616. Its totient is φ = 8057656200.

The previous prime is 12123111001. The next prime is 12123111029. The reversal of 12123111003 is 30011132121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12123111003 - 2¹ = 12123111001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12123111001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6103293 + ... + 6105278.

It is an arithmetic number, because the mean of its divisors is an integer number (2026622952).

Almost surely, 2^12123111003 is an apocalyptic number.

12123111003 is a deficient number, since it is larger than the sum of its proper divisors (4089872613).

12123111003 is a wasteful number, since it uses less digits than its factorization.

12123111003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12208905.

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

Adding to 12123111003 its reverse (30011132121), we get a palindrome (42134243124).

The spelling of 12123111003 in words is "twelve billion, one hundred twenty-three million, one hundred eleven thousand, three".