12112021203 has 4 divisors (see below), whose sum is σ = 16149361608. Its totient is φ = 8074680800.

The previous prime is 12112021189. The next prime is 12112021231. The reversal of 12112021203 is 30212021121.

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 12112021203 - 2⁶ = 12112021139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12112021403) 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, 2018670198 + ... + 2018670203.

It is an arithmetic number, because the mean of its divisors is an integer number (4037340402).

Almost surely, 2^12112021203 is an apocalyptic number.

12112021203 is a deficient number, since it is larger than the sum of its proper divisors (4037340405).

12112021203 is an equidigital number, since it uses as much as digits as its factorization.

12112021203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037340404.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12112021203 its reverse (30212021121), we get a palindrome (42324042324).

The spelling of 12112021203 in words is "twelve billion, one hundred twelve million, twenty-one thousand, two hundred three".