12112003321 has 24 divisors (see below), whose sum is σ = 14037458400. Its totient is φ = 10413849600.

The previous prime is 12112003313. The next prime is 12112003327. The reversal of 12112003321 is 12330021121.

It is not a de Polignac number, because 12112003321 - 2³ = 12112003313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12112003295 and 12112003304.

It is not an unprimeable number, because it can be changed into a prime (12112003327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1469550 + ... + 1477768.

It is an arithmetic number, because the mean of its divisors is an integer number (584894100).

Almost surely, 2^12112003321 is an apocalyptic number.

12112003321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12112003321 is a deficient number, since it is larger than the sum of its proper divisors (1925455079).

12112003321 is a wasteful number, since it uses less digits than its factorization.

12112003321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8901 (or 8890 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12112003321 its reverse (12330021121), we get a palindrome (24442024442).

The spelling of 12112003321 in words is "twelve billion, one hundred twelve million, three thousand, three hundred twenty-one".