12111021103323 has 4 divisors (see below), whose sum is σ = 16148028137768. Its totient is φ = 8074014068880.

The previous prime is 12111021103319. The next prime is 12111021103331. The reversal of 12111021103323 is 32330112011121.

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

It is not a de Polignac number, because 12111021103323 - 2² = 12111021103319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12111021103323.

It is not an unprimeable number, because it can be changed into a prime (12111021103393) 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, 2018503517218 + ... + 2018503517223.

It is an arithmetic number, because the mean of its divisors is an integer number (4037007034442).

Almost surely, 2^{12111021103323} is an apocalyptic number.

12111021103323 is a deficient number, since it is larger than the sum of its proper divisors (4037007034445).

12111021103323 is an equidigital number, since it uses as much as digits as its factorization.

12111021103323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037007034444.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 12111021103323 its reverse (32330112011121), we get a palindrome (44441133114444).

The spelling of 12111021103323 in words is "twelve trillion, one hundred eleven billion, twenty-one million, one hundred three thousand, three hundred twenty-three".