12343112121 has 8 divisors (see below), whose sum is σ = 16464522304. Its totient is φ = 8225221680.

The previous prime is 12343112083. The next prime is 12343112189. The reversal of 12343112121 is 12121134321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12343112121 - 2⁶ = 12343112057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12343119121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 871741 + ... + 885786.

It is an arithmetic number, because the mean of its divisors is an integer number (2058065288).

Almost surely, 2^12343112121 is an apocalyptic number.

It is an amenable number.

12343112121 is a deficient number, since it is larger than the sum of its proper divisors (4121410183).

12343112121 is a wasteful number, since it uses less digits than its factorization.

12343112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759871.

The product of its digits is 288, while the sum is 21.

Adding to 12343112121 its reverse (12121134321), we get a palindrome (24464246442).

The spelling of 12343112121 in words is "twelve billion, three hundred forty-three million, one hundred twelve thousand, one hundred twenty-one".