12404442343 has 4 divisors (see below), whose sum is σ = 13134115440. Its totient is φ = 11674769248.

The previous prime is 12404442341. The next prime is 12404442383. The reversal of 12404442343 is 34324440421.

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

It is a cyclic number.

It is not a de Polignac number, because 12404442343 - 2¹ = 12404442341 is a prime.

It is a super-2 number, since 2×12404442343² (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 (12404442341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364836523 + ... + 364836556.

It is an arithmetic number, because the mean of its divisors is an integer number (3283528860).

Almost surely, 2^12404442343 is an apocalyptic number.

12404442343 is a deficient number, since it is larger than the sum of its proper divisors (729673097).

12404442343 is an equidigital number, since it uses as much as digits as its factorization.

12404442343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729673096.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 12404442343 its reverse (34324440421), we get a palindrome (46728882764).

The spelling of 12404442343 in words is "twelve billion, four hundred four million, four hundred forty-two thousand, three hundred forty-three".