12102112003 has 4 divisors (see below), whose sum is σ = 12519426240. Its totient is φ = 11684797768.

The previous prime is 12102111971. The next prime is 12102112021. The reversal of 12102112003 is 30021120121.

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

It is a cyclic number.

It is not a de Polignac number, because 12102112003 - 2⁵ = 12102111971 is a prime.

It is a super-2 number, since 2×12102112003² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102112703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208657075 + ... + 208657132.

It is an arithmetic number, because the mean of its divisors is an integer number (3129856560).

Almost surely, 2^12102112003 is an apocalyptic number.

12102112003 is a deficient number, since it is larger than the sum of its proper divisors (417314237).

12102112003 is an equidigital number, since it uses as much as digits as its factorization.

12102112003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417314236.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12102112003 its reverse (30021120121), we get a palindrome (42123232124).

The spelling of 12102112003 in words is "twelve billion, one hundred two million, one hundred twelve thousand, three".