12142110321 has 24 divisors (see below), whose sum is σ = 19375224960. Its totient is φ = 7265700000.

The previous prime is 12142110319. The next prime is 12142110347. The reversal of 12142110321 is 12301124121.

12142110321 is a `hidden beast` number, since 121 + 421 + 103 + 21 = 666.

It is not a de Polignac number, because 12142110321 - 2¹ = 12142110319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12142110294 and 12142110303.

It is not an unprimeable number, because it can be changed into a prime (12142110521) 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, 768430 + ... + 784071.

It is an arithmetic number, because the mean of its divisors is an integer number (807301040).

Almost surely, 2^12142110321 is an apocalyptic number.

12142110321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12142110321 is a deficient number, since it is larger than the sum of its proper divisors (7233114639).

12142110321 is a wasteful number, since it uses less digits than its factorization.

12142110321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552597 (or 1552594 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12142110321 its reverse (12301124121), we get a palindrome (24443234442).

The spelling of 12142110321 in words is "twelve billion, one hundred forty-two million, one hundred ten thousand, three hundred twenty-one".