12340643705601 has 4 divisors (see below), whose sum is σ = 16454191607472. Its totient is φ = 8227095803732.

The previous prime is 12340643705597. The next prime is 12340643705603. The reversal of 12340643705601 is 10650734604321.

12340643705601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12340643705601 - 2² = 12340643705597 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12340643705603) 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, 2056773950931 + ... + 2056773950936.

It is an arithmetic number, because the mean of its divisors is an integer number (4113547901868).

Almost surely, 2^{12340643705601} is an apocalyptic number.

It is an amenable number.

12340643705601 is a deficient number, since it is larger than the sum of its proper divisors (4113547901871).

12340643705601 is an equidigital number, since it uses as much as digits as its factorization.

12340643705601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4113547901870.

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 12340643705601 in words is "twelve trillion, three hundred forty billion, six hundred forty-three million, seven hundred five thousand, six hundred one".