12323001121 has 4 divisors (see below), whose sum is σ = 12401491732. Its totient is φ = 12244510512.

The previous prime is 12323001109. The next prime is 12323001127. The reversal of 12323001121 is 12110032321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7471182096 + 4851819025 = 86436^2 + 69655^2 .

It is a cyclic number.

It is not a de Polignac number, because 12323001121 - 2⁷ = 12323000993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12323001095 and 12323001104.

It is not an unprimeable number, because it can be changed into a prime (12323001127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39245070 + ... + 39245383.

It is an arithmetic number, because the mean of its divisors is an integer number (3100372933).

Almost surely, 2^12323001121 is an apocalyptic number.

It is an amenable number.

12323001121 is a deficient number, since it is larger than the sum of its proper divisors (78490611).

12323001121 is an equidigital number, since it uses as much as digits as its factorization.

12323001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78490610.

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

Adding to 12323001121 its reverse (12110032321), we get a palindrome (24433033442).

The spelling of 12323001121 in words is "twelve billion, three hundred twenty-three million, one thousand, one hundred twenty-one".