12356784341 has 4 divisors (see below), whose sum is σ = 13480128384. Its totient is φ = 11233440300.

The previous prime is 12356784287. The next prime is 12356784343. The reversal of 12356784341 is 14348765321.

It is a happy number.

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 not a de Polignac number, because 12356784341 - 2¹⁴ = 12356767957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12356784292 and 12356784301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12356784343) 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, 561672005 + ... + 561672026.

It is an arithmetic number, because the mean of its divisors is an integer number (3370032096).

Almost surely, 2^12356784341 is an apocalyptic number.

12356784341 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12356784341 is a deficient number, since it is larger than the sum of its proper divisors (1123344043).

12356784341 is a wasteful number, since it uses less digits than its factorization.

12356784341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123344042.

The product of its digits is 483840, while the sum is 44.

It can be divided in two parts, 12356 and 784341, that added together give a palindrome (796697).

The spelling of 12356784341 in words is "twelve billion, three hundred fifty-six million, seven hundred eighty-four thousand, three hundred forty-one".