12344112421 has 16 divisors (see below), whose sum is σ = 12848160960. Its totient is φ = 11845532160.

The previous prime is 12344112419. The next prime is 12344112449. The reversal of 12344112421 is 12421144321.

It is a cyclic number.

It is not a de Polignac number, because 12344112421 - 2¹ = 12344112419 is a prime.

It is a super-2 number, since 2×12344112421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12344110421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3386626 + ... + 3390268.

It is an arithmetic number, because the mean of its divisors is an integer number (803010060).

Almost surely, 2^12344112421 is an apocalyptic number.

It is an amenable number.

12344112421 is a deficient number, since it is larger than the sum of its proper divisors (504048539).

12344112421 is a wasteful number, since it uses less digits than its factorization.

12344112421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4356.

The product of its digits is 1536, while the sum is 25.

Adding to 12344112421 its reverse (12421144321), we get a palindrome (24765256742).

The spelling of 12344112421 in words is "twelve billion, three hundred forty-four million, one hundred twelve thousand, four hundred twenty-one".