12112032321 has 12 divisors (see below), whose sum is σ = 17533446372. Its totient is φ = 8057016576.

The previous prime is 12112032301. The next prime is 12112032337. The reversal of 12112032321 is 12323021121.

It can be written as a sum of positive squares in 2 ways, for example, as 8306499600 + 3805532721 = 91140^2 + 61689^2 .

It is not a de Polignac number, because 12112032321 - 2⁷ = 12112032193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12112032294 and 12112032303.

It is not an unprimeable number, because it can be changed into a prime (12112032301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1468296 + ... + 1476521.

It is an arithmetic number, because the mean of its divisors is an integer number (1461120531).

Almost surely, 2^12112032321 is an apocalyptic number.

It is an amenable number.

12112032321 is a deficient number, since it is larger than the sum of its proper divisors (5421414051).

12112032321 is a wasteful number, since it uses less digits than its factorization.

12112032321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945280 (or 2945277 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12112032321 its reverse (12323021121), we get a palindrome (24435053442).

The spelling of 12112032321 in words is "twelve billion, one hundred twelve million, thirty-two thousand, three hundred twenty-one".