12001121103 has 8 divisors (see below), whose sum is σ = 16067892016. Its totient is φ = 7967548800.

The previous prime is 12001121089. The next prime is 12001121149. The reversal of 12001121103 is 30112110021.

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

It is not a de Polignac number, because 12001121103 - 2⁸ = 12001120847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001128103) 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, 8298808 + ... + 8300253.

It is an arithmetic number, because the mean of its divisors is an integer number (2008486502).

Almost surely, 2^12001121103 is an apocalyptic number.

12001121103 is a deficient number, since it is larger than the sum of its proper divisors (4066770913).

12001121103 is a wasteful number, since it uses less digits than its factorization.

12001121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16599305.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 12001121103 its reverse (30112110021), we get a palindrome (42113231124).

The spelling of 12001121103 in words is "twelve billion, one million, one hundred twenty-one thousand, one hundred three".