12112100403 has 64 divisors (see below), whose sum is σ = 18898790400. Its totient is φ = 6840345600.

The previous prime is 12112100353. The next prime is 12112100417. The reversal of 12112100403 is 30400121121.

It is not a de Polignac number, because 12112100403 - 2³³ = 3522165811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12112100453) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2240698 + ... + 2246096.

It is an arithmetic number, because the mean of its divisors is an integer number (295293600).

Almost surely, 2^12112100403 is an apocalyptic number.

12112100403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12112100403 is a deficient number, since it is larger than the sum of its proper divisors (6786689997).

12112100403 is a wasteful number, since it uses less digits than its factorization.

12112100403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5540.

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

Adding to 12112100403 its reverse (30400121121), we get a palindrome (42512221524).

The spelling of 12112100403 in words is "twelve billion, one hundred twelve million, one hundred thousand, four hundred three".