12334421443 has 4 divisors (see below), whose sum is σ = 12490553440. Its totient is φ = 12178289448.

The previous prime is 12334421431. The next prime is 12334421447. The reversal of 12334421443 is 34412443321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34412443321 = 691 ⋅49800931.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12334421443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12334421447) 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, 78065880 + ... + 78066037.

It is an arithmetic number, because the mean of its divisors is an integer number (3122638360).

Almost surely, 2^12334421443 is an apocalyptic number.

12334421443 is a deficient number, since it is larger than the sum of its proper divisors (156131997).

12334421443 is an equidigital number, since it uses as much as digits as its factorization.

12334421443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156131996.

The product of its digits is 27648, while the sum is 31.

Adding to 12334421443 its reverse (34412443321), we get a palindrome (46746864764).

The spelling of 12334421443 in words is "twelve billion, three hundred thirty-four million, four hundred twenty-one thousand, four hundred forty-three".