12142323321 has 32 divisors (see below), whose sum is σ = 17327426688. Its totient is φ = 7536721920.

The previous prime is 12142323317. The next prime is 12142323329. The reversal of 12142323321 is 12332324121.

It is not a de Polignac number, because 12142323321 - 2² = 12142323317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12142323291 and 12142323300.

It is not an unprimeable number, because it can be changed into a prime (12142323329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2248801 + ... + 2254193.

It is an arithmetic number, because the mean of its divisors is an integer number (541482084).

Almost surely, 2^12142323321 is an apocalyptic number.

It is an amenable number.

12142323321 is a deficient number, since it is larger than the sum of its proper divisors (5185103367).

12142323321 is a wasteful number, since it uses less digits than its factorization.

12142323321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5881.

The product of its digits is 1728, while the sum is 24.

Adding to 12142323321 its reverse (12332324121), we get a palindrome (24474647442).

The spelling of 12142323321 in words is "twelve billion, one hundred forty-two million, three hundred twenty-three thousand, three hundred twenty-one".