12340404433 has 4 divisors (see below), whose sum is σ = 14103319360. Its totient is φ = 10577489508.

The previous prime is 12340404413. The next prime is 12340404457. The reversal of 12340404433 is 33440404321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12340404433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12340404403) 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, 881457453 + ... + 881457466.

It is an arithmetic number, because the mean of its divisors is an integer number (3525829840).

Almost surely, 2^12340404433 is an apocalyptic number.

It is an amenable number.

12340404433 is a deficient number, since it is larger than the sum of its proper divisors (1762914927).

12340404433 is an equidigital number, since it uses as much as digits as its factorization.

12340404433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762914926.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 12340404433 its reverse (33440404321), we get a palindrome (45780808754).

The spelling of 12340404433 in words is "twelve billion, three hundred forty million, four hundred four thousand, four hundred thirty-three".